Home / 99,403.20-137,175.36-54,082.56

Finding the Fourth Proportional to 99,403.20, 137,175.36 and 54,082.56

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Solution

The fourth proportional to 99,403.20, 137,175.36 and 54,082.56 is: 74,633.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,403.20 : 137,175.36 = 54,082.56 : x
  2. Step 2: Convert to fraction form
    99,403.20/137,175.36 = 54,082.56/x
  3. Step 3: Cross multiply
    99,403.20x = 137,175.36 × 54,082.56
  4. Step 4: Simplify right side
    99,403.20x = 7,418,794,637.72
  5. Step 5: Solve for x
    x = 7,418,794,637.72/99,403.20
  6. Step 6: Final answer
    x = 74,633.36

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