Home / 161,862.30-242,793.45-90,711.90

Finding the Fourth Proportional to 161,862.30, 242,793.45 and 90,711.90

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Solution

The fourth proportional to 161,862.30, 242,793.45 and 90,711.90 is: 136,067.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,862.30 : 242,793.45 = 90,711.90 : x
  2. Step 2: Convert to fraction form
    161,862.30/242,793.45 = 90,711.90/x
  3. Step 3: Cross multiply
    161,862.30x = 242,793.45 × 90,711.90
  4. Step 4: Simplify right side
    161,862.30x = 22,024,255,157.06
  5. Step 5: Solve for x
    x = 22,024,255,157.06/161,862.30
  6. Step 6: Final answer
    x = 136,067.85

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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.