Home / 138,156.24-207,183.60-49,385.64

Finding the Fourth Proportional to 138,156.24, 207,183.60 and 49,385.64

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Solution

The fourth proportional to 138,156.24, 207,183.60 and 49,385.64 is: 74,060.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,156.24 : 207,183.60 = 49,385.64 : x
  2. Step 2: Convert to fraction form
    138,156.24/207,183.60 = 49,385.64/x
  3. Step 3: Cross multiply
    138,156.24x = 207,183.60 × 49,385.64
  4. Step 4: Simplify right side
    138,156.24x = 10,231,894,683.50
  5. Step 5: Solve for x
    x = 10,231,894,683.50/138,156.24
  6. Step 6: Final answer
    x = 74,060.32

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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.