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Finding the Fourth Proportional to 140,230.68, 210,346.35 and 55,997.70

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Solution

The fourth proportional to 140,230.68, 210,346.35 and 55,997.70 is: 83,996.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,230.68 : 210,346.35 = 55,997.70 : x
  2. Step 2: Convert to fraction form
    140,230.68/210,346.35 = 55,997.70/x
  3. Step 3: Cross multiply
    140,230.68x = 210,346.35 × 55,997.70
  4. Step 4: Simplify right side
    140,230.68x = 11,778,911,803.40
  5. Step 5: Solve for x
    x = 11,778,911,803.40/140,230.68
  6. Step 6: Final answer
    x = 83,996.68

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Double scale
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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.