Home / 103,238.91-142,480.49-57,929.13

Finding the Fourth Proportional to 103,238.91, 142,480.49 and 57,929.13

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Solution

The fourth proportional to 103,238.91, 142,480.49 and 57,929.13 is: 79,948.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,238.91 : 142,480.49 = 57,929.13 : x
  2. Step 2: Convert to fraction form
    103,238.91/142,480.49 = 57,929.13/x
  3. Step 3: Cross multiply
    103,238.91x = 142,480.49 × 57,929.13
  4. Step 4: Simplify right side
    103,238.91x = 8,253,770,538.03
  5. Step 5: Solve for x
    x = 8,253,770,538.03/103,238.91
  6. Step 6: Final answer
    x = 79,948.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.