Home / 138,532.02-207,812.61-68,343.90

Finding the Fourth Proportional to 138,532.02, 207,812.61 and 68,343.90

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Solution

The fourth proportional to 138,532.02, 207,812.61 and 68,343.90 is: 102,523.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,532.02 : 207,812.61 = 68,343.90 : x
  2. Step 2: Convert to fraction form
    138,532.02/207,812.61 = 68,343.90/x
  3. Step 3: Cross multiply
    138,532.02x = 207,812.61 × 68,343.90
  4. Step 4: Simplify right side
    138,532.02x = 14,202,724,236.58
  5. Step 5: Solve for x
    x = 14,202,724,236.58/138,532.02
  6. Step 6: Final answer
    x = 102,523.04

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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.