Home / 156,747.90-235,121.85-154,155.90

Finding the Fourth Proportional to 156,747.90, 235,121.85 and 154,155.90

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Solution

The fourth proportional to 156,747.90, 235,121.85 and 154,155.90 is: 231,233.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,747.90 : 235,121.85 = 154,155.90 : x
  2. Step 2: Convert to fraction form
    156,747.90/235,121.85 = 154,155.90/x
  3. Step 3: Cross multiply
    156,747.90x = 235,121.85 × 154,155.90
  4. Step 4: Simplify right side
    156,747.90x = 36,245,420,396.42
  5. Step 5: Solve for x
    x = 36,245,420,396.42/156,747.90
  6. Step 6: Final answer
    x = 231,233.85

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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.