Home / 121,061.28-181,434.60-67,751.04

Finding the Fourth Proportional to 121,061.28, 181,434.60 and 67,751.04

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Solution

The fourth proportional to 121,061.28, 181,434.60 and 67,751.04 is: 101,538.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,061.28 : 181,434.60 = 67,751.04 : x
  2. Step 2: Convert to fraction form
    121,061.28/181,434.60 = 67,751.04/x
  3. Step 3: Cross multiply
    121,061.28x = 181,434.60 × 67,751.04
  4. Step 4: Simplify right side
    121,061.28x = 12,292,382,841.98
  5. Step 5: Solve for x
    x = 12,292,382,841.98/121,061.28
  6. Step 6: Final answer
    x = 101,538.52

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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.