Home / 129,987.27-179,362.22-73,397.43

Finding the Fourth Proportional to 129,987.27, 179,362.22 and 73,397.43

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Solution

The fourth proportional to 129,987.27, 179,362.22 and 73,397.43 is: 101,277.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,987.27 : 179,362.22 = 73,397.43 : x
  2. Step 2: Convert to fraction form
    129,987.27/179,362.22 = 73,397.43/x
  3. Step 3: Cross multiply
    129,987.27x = 179,362.22 × 73,397.43
  4. Step 4: Simplify right side
    129,987.27x = 13,164,725,620.11
  5. Step 5: Solve for x
    x = 13,164,725,620.11/129,987.27
  6. Step 6: Final answer
    x = 101,277.04

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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.