Home / 121,753.12-168,233.91-93,701.20

Finding the Fourth Proportional to 121,753.12, 168,233.91 and 93,701.20

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Solution

The fourth proportional to 121,753.12, 168,233.91 and 93,701.20 is: 129,472.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,753.12 : 168,233.91 = 93,701.20 : x
  2. Step 2: Convert to fraction form
    121,753.12/168,233.91 = 93,701.20/x
  3. Step 3: Cross multiply
    121,753.12x = 168,233.91 × 93,701.20
  4. Step 4: Simplify right side
    121,753.12x = 15,763,719,247.69
  5. Step 5: Solve for x
    x = 15,763,719,247.69/121,753.12
  6. Step 6: Final answer
    x = 129,472.82

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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.