Home / 132,724.16-198,972.16-57,787.20

Finding the Fourth Proportional to 132,724.16, 198,972.16 and 57,787.20

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Solution

The fourth proportional to 132,724.16, 198,972.16 and 57,787.20 is: 86,631.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,724.16 : 198,972.16 = 57,787.20 : x
  2. Step 2: Convert to fraction form
    132,724.16/198,972.16 = 57,787.20/x
  3. Step 3: Cross multiply
    132,724.16x = 198,972.16 × 57,787.20
  4. Step 4: Simplify right side
    132,724.16x = 11,498,044,004.35
  5. Step 5: Solve for x
    x = 11,498,044,004.35/132,724.16
  6. Step 6: Final answer
    x = 86,631.13

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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.