Home / 129,788.57-194,862.14-89,708.82

Finding the Fourth Proportional to 129,788.57, 194,862.14 and 89,708.82

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Solution

The fourth proportional to 129,788.57, 194,862.14 and 89,708.82 is: 134,687.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,788.57 : 194,862.14 = 89,708.82 : x
  2. Step 2: Convert to fraction form
    129,788.57/194,862.14 = 89,708.82/x
  3. Step 3: Cross multiply
    129,788.57x = 194,862.14 × 89,708.82
  4. Step 4: Simplify right side
    129,788.57x = 17,480,852,193.53
  5. Step 5: Solve for x
    x = 17,480,852,193.53/129,788.57
  6. Step 6: Final answer
    x = 134,687.15

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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.