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Finding the Fourth Proportional to 143,648.60, 215,472.90 and 93,882.20

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Solution

The fourth proportional to 143,648.60, 215,472.90 and 93,882.20 is: 140,823.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,648.60 : 215,472.90 = 93,882.20 : x
  2. Step 2: Convert to fraction form
    143,648.60/215,472.90 = 93,882.20/x
  3. Step 3: Cross multiply
    143,648.60x = 215,472.90 × 93,882.20
  4. Step 4: Simplify right side
    143,648.60x = 20,229,069,892.38
  5. Step 5: Solve for x
    x = 20,229,069,892.38/143,648.60
  6. Step 6: Final answer
    x = 140,823.30

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1.5x scale

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.