Home / 102,706.92-141,742.23-57,385.17

Finding the Fourth Proportional to 102,706.92, 141,742.23 and 57,385.17

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Solution

The fourth proportional to 102,706.92, 141,742.23 and 57,385.17 is: 79,195.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,706.92 : 141,742.23 = 57,385.17 : x
  2. Step 2: Convert to fraction form
    102,706.92/141,742.23 = 57,385.17/x
  3. Step 3: Cross multiply
    102,706.92x = 141,742.23 × 57,385.17
  4. Step 4: Simplify right side
    102,706.92x = 8,133,901,964.73
  5. Step 5: Solve for x
    x = 8,133,901,964.73/102,706.92
  6. Step 6: Final answer
    x = 79,195.27

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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.