Home / 138,028.50-207,091.35-67,957.02

Finding the Fourth Proportional to 138,028.50, 207,091.35 and 67,957.02

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Solution

The fourth proportional to 138,028.50, 207,091.35 and 67,957.02 is: 101,959.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,028.50 : 207,091.35 = 67,957.02 : x
  2. Step 2: Convert to fraction form
    138,028.50/207,091.35 = 67,957.02/x
  3. Step 3: Cross multiply
    138,028.50x = 207,091.35 × 67,957.02
  4. Step 4: Simplify right side
    138,028.50x = 14,073,311,013.78
  5. Step 5: Solve for x
    x = 14,073,311,013.78/138,028.50
  6. Step 6: Final answer
    x = 101,959.46

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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.