Home / 102,694.40-141,704.25-57,366.78

Finding the Fourth Proportional to 102,694.40, 141,704.25 and 57,366.78

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Solution

The fourth proportional to 102,694.40, 141,704.25 and 57,366.78 is: 79,158.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,694.40 : 141,704.25 = 57,366.78 : x
  2. Step 2: Convert to fraction form
    102,694.40/141,704.25 = 57,366.78/x
  3. Step 3: Cross multiply
    102,694.40x = 141,704.25 × 57,366.78
  4. Step 4: Simplify right side
    102,694.40x = 8,129,116,180.55
  5. Step 5: Solve for x
    x = 8,129,116,180.55/102,694.40
  6. Step 6: Final answer
    x = 79,158.32

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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.