Home / 138,560.73-207,757.80-54,220.29

Finding the Fourth Proportional to 138,560.73, 207,757.80 and 54,220.29

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Solution

The fourth proportional to 138,560.73, 207,757.80 and 54,220.29 is: 81,297.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,560.73 : 207,757.80 = 54,220.29 : x
  2. Step 2: Convert to fraction form
    138,560.73/207,757.80 = 54,220.29/x
  3. Step 3: Cross multiply
    138,560.73x = 207,757.80 × 54,220.29
  4. Step 4: Simplify right side
    138,560.73x = 11,264,688,165.76
  5. Step 5: Solve for x
    x = 11,264,688,165.76/138,560.73
  6. Step 6: Final answer
    x = 81,297.84

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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.