Home / 138,076.79-207,113.10-62,121.69

Finding the Fourth Proportional to 138,076.79, 207,113.10 and 62,121.69

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Solution

The fourth proportional to 138,076.79, 207,113.10 and 62,121.69 is: 93,181.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,076.79 : 207,113.10 = 62,121.69 : x
  2. Step 2: Convert to fraction form
    138,076.79/207,113.10 = 62,121.69/x
  3. Step 3: Cross multiply
    138,076.79x = 207,113.10 × 62,121.69
  4. Step 4: Simplify right side
    138,076.79x = 12,866,215,793.14
  5. Step 5: Solve for x
    x = 12,866,215,793.14/138,076.79
  6. Step 6: Final answer
    x = 93,181.60

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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.