Home / 143,553.20-215,375.70-43,732.40

Finding the Fourth Proportional to 143,553.20, 215,375.70 and 43,732.40

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Solution

The fourth proportional to 143,553.20, 215,375.70 and 43,732.40 is: 65,612.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,553.20 : 215,375.70 = 43,732.40 : x
  2. Step 2: Convert to fraction form
    143,553.20/215,375.70 = 43,732.40/x
  3. Step 3: Cross multiply
    143,553.20x = 215,375.70 × 43,732.40
  4. Step 4: Simplify right side
    143,553.20x = 9,418,896,262.68
  5. Step 5: Solve for x
    x = 9,418,896,262.68/143,553.20
  6. Step 6: Final answer
    x = 65,612.58

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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.