Home / 104,901.28-144,765.42-57,154.61

Finding the Fourth Proportional to 104,901.28, 144,765.42 and 57,154.61

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Solution

The fourth proportional to 104,901.28, 144,765.42 and 57,154.61 is: 78,874.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,901.28 : 144,765.42 = 57,154.61 : x
  2. Step 2: Convert to fraction form
    104,901.28/144,765.42 = 57,154.61/x
  3. Step 3: Cross multiply
    104,901.28x = 144,765.42 × 57,154.61
  4. Step 4: Simplify right side
    104,901.28x = 8,274,011,121.59
  5. Step 5: Solve for x
    x = 8,274,011,121.59/104,901.28
  6. Step 6: Final answer
    x = 78,874.26

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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.