Home / 143,422.92-215,126.10-54,685.38

Finding the Fourth Proportional to 143,422.92, 215,126.10 and 54,685.38

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Solution

The fourth proportional to 143,422.92, 215,126.10 and 54,685.38 is: 82,024.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,422.92 : 215,126.10 = 54,685.38 : x
  2. Step 2: Convert to fraction form
    143,422.92/215,126.10 = 54,685.38/x
  3. Step 3: Cross multiply
    143,422.92x = 215,126.10 × 54,685.38
  4. Step 4: Simplify right side
    143,422.92x = 11,764,252,526.42
  5. Step 5: Solve for x
    x = 11,764,252,526.42/143,422.92
  6. Step 6: Final answer
    x = 82,024.91

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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.