Home / 99,954.14-137,940.42-54,635.16

Finding the Fourth Proportional to 99,954.14, 137,940.42 and 54,635.16

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Solution

The fourth proportional to 99,954.14, 137,940.42 and 54,635.16 is: 75,398.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,954.14 : 137,940.42 = 54,635.16 : x
  2. Step 2: Convert to fraction form
    99,954.14/137,940.42 = 54,635.16/x
  3. Step 3: Cross multiply
    99,954.14x = 137,940.42 × 54,635.16
  4. Step 4: Simplify right side
    99,954.14x = 7,536,396,917.17
  5. Step 5: Solve for x
    x = 7,536,396,917.17/99,954.14
  6. Step 6: Final answer
    x = 75,398.55

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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.