Home / 138,240.63-207,353.66-68,096.25

Finding the Fourth Proportional to 138,240.63, 207,353.66 and 68,096.25

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Solution

The fourth proportional to 138,240.63, 207,353.66 and 68,096.25 is: 102,140.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,240.63 : 207,353.66 = 68,096.25 : x
  2. Step 2: Convert to fraction form
    138,240.63/207,353.66 = 68,096.25/x
  3. Step 3: Cross multiply
    138,240.63x = 207,353.66 × 68,096.25
  4. Step 4: Simplify right side
    138,240.63x = 14,120,006,329.29
  5. Step 5: Solve for x
    x = 14,120,006,329.29/138,240.63
  6. Step 6: Final answer
    x = 102,140.78

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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.