Home / 129,941.28-179,326.18-91,713.06

Finding the Fourth Proportional to 129,941.28, 179,326.18 and 91,713.06

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Solution

The fourth proportional to 129,941.28, 179,326.18 and 91,713.06 is: 126,569.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,941.28 : 179,326.18 = 91,713.06 : x
  2. Step 2: Convert to fraction form
    129,941.28/179,326.18 = 91,713.06/x
  3. Step 3: Cross multiply
    129,941.28x = 179,326.18 × 91,713.06
  4. Step 4: Simplify right side
    129,941.28x = 16,446,552,705.91
  5. Step 5: Solve for x
    x = 16,446,552,705.91/129,941.28
  6. Step 6: Final answer
    x = 126,569.11

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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.