Home / 99,515.06-137,331.66-54,193.24

Finding the Fourth Proportional to 99,515.06, 137,331.66 and 54,193.24

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Solution

The fourth proportional to 99,515.06, 137,331.66 and 54,193.24 is: 74,787.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,515.06 : 137,331.66 = 54,193.24 : x
  2. Step 2: Convert to fraction form
    99,515.06/137,331.66 = 54,193.24/x
  3. Step 3: Cross multiply
    99,515.06x = 137,331.66 × 54,193.24
  4. Step 4: Simplify right side
    99,515.06x = 7,442,447,609.98
  5. Step 5: Solve for x
    x = 7,442,447,609.98/99,515.06
  6. Step 6: Final answer
    x = 74,787.15

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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.