Home / 99,734.17-137,620.78-60,991.47

Finding the Fourth Proportional to 99,734.17, 137,620.78 and 60,991.47

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Solution

The fourth proportional to 99,734.17, 137,620.78 and 60,991.47 is: 84,160.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,734.17 : 137,620.78 = 60,991.47 : x
  2. Step 2: Convert to fraction form
    99,734.17/137,620.78 = 60,991.47/x
  3. Step 3: Cross multiply
    99,734.17x = 137,620.78 × 60,991.47
  4. Step 4: Simplify right side
    99,734.17x = 8,393,693,674.75
  5. Step 5: Solve for x
    x = 8,393,693,674.75/99,734.17
  6. Step 6: Final answer
    x = 84,160.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.