Home / 439,424.76-659,136.96-139,997.10

Finding the Fourth Proportional to 439,424.76, 659,136.96 and 139,997.10

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Solution

The fourth proportional to 439,424.76, 659,136.96 and 139,997.10 is: 209,995.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,424.76 : 659,136.96 = 139,997.10 : x
  2. Step 2: Convert to fraction form
    439,424.76/659,136.96 = 139,997.10/x
  3. Step 3: Cross multiply
    439,424.76x = 659,136.96 × 139,997.10
  4. Step 4: Simplify right side
    439,424.76x = 92,277,262,902.82
  5. Step 5: Solve for x
    x = 92,277,262,902.82/439,424.76
  6. Step 6: Final answer
    x = 209,995.59

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.