Home / 104,976.20-144,869.92-64,716.57

Finding the Fourth Proportional to 104,976.20, 144,869.92 and 64,716.57

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Solution

The fourth proportional to 104,976.20, 144,869.92 and 64,716.57 is: 89,310.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,976.20 : 144,869.92 = 64,716.57 : x
  2. Step 2: Convert to fraction form
    104,976.20/144,869.92 = 64,716.57/x
  3. Step 3: Cross multiply
    104,976.20x = 144,869.92 × 64,716.57
  4. Step 4: Simplify right side
    104,976.20x = 9,375,484,156.78
  5. Step 5: Solve for x
    x = 9,375,484,156.78/104,976.20
  6. Step 6: Final answer
    x = 89,310.57

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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.