Home / 156,747.90-235,121.85-45,939.90

Finding the Fourth Proportional to 156,747.90, 235,121.85 and 45,939.90

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Solution

The fourth proportional to 156,747.90, 235,121.85 and 45,939.90 is: 68,909.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,747.90 : 235,121.85 = 45,939.90 : x
  2. Step 2: Convert to fraction form
    156,747.90/235,121.85 = 45,939.90/x
  3. Step 3: Cross multiply
    156,747.90x = 235,121.85 × 45,939.90
  4. Step 4: Simplify right side
    156,747.90x = 10,801,474,276.82
  5. Step 5: Solve for x
    x = 10,801,474,276.82/156,747.90
  6. Step 6: Final answer
    x = 68,909.85

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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.