Home / 132,631.40-198,982.30-57,719.40

Finding the Fourth Proportional to 132,631.40, 198,982.30 and 57,719.40

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Solution

The fourth proportional to 132,631.40, 198,982.30 and 57,719.40 is: 86,594.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,631.40 : 198,982.30 = 57,719.40 : x
  2. Step 2: Convert to fraction form
    132,631.40/198,982.30 = 57,719.40/x
  3. Step 3: Cross multiply
    132,631.40x = 198,982.30 × 57,719.40
  4. Step 4: Simplify right side
    132,631.40x = 11,485,138,966.62
  5. Step 5: Solve for x
    x = 11,485,138,966.62/132,631.40
  6. Step 6: Final answer
    x = 86,594.42

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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.