Home / 138,014.15-207,020.98-43,251.60

Finding the Fourth Proportional to 138,014.15, 207,020.98 and 43,251.60

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Solution

The fourth proportional to 138,014.15, 207,020.98 and 43,251.60 is: 64,877.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,014.15 : 207,020.98 = 43,251.60 : x
  2. Step 2: Convert to fraction form
    138,014.15/207,020.98 = 43,251.60/x
  3. Step 3: Cross multiply
    138,014.15x = 207,020.98 × 43,251.60
  4. Step 4: Simplify right side
    138,014.15x = 8,953,988,618.57
  5. Step 5: Solve for x
    x = 8,953,988,618.57/138,014.15
  6. Step 6: Final answer
    x = 64,877.32

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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.