Home / 79,162.10-118,743.15-19,997.94

Finding the Fourth Proportional to 79,162.10, 118,743.15 and 19,997.94

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Solution

The fourth proportional to 79,162.10, 118,743.15 and 19,997.94 is: 29,996.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,162.10 : 118,743.15 = 19,997.94 : x
  2. Step 2: Convert to fraction form
    79,162.10/118,743.15 = 19,997.94/x
  3. Step 3: Cross multiply
    79,162.10x = 118,743.15 × 19,997.94
  4. Step 4: Simplify right side
    79,162.10x = 2,374,618,389.11
  5. Step 5: Solve for x
    x = 2,374,618,389.11/79,162.10
  6. Step 6: Final answer
    x = 29,996.91

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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.