Home / 132,356.40-198,422.94-57,420.12

Finding the Fourth Proportional to 132,356.40, 198,422.94 and 57,420.12

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Solution

The fourth proportional to 132,356.40, 198,422.94 and 57,420.12 is: 86,081.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,356.40 : 198,422.94 = 57,420.12 : x
  2. Step 2: Convert to fraction form
    132,356.40/198,422.94 = 57,420.12/x
  3. Step 3: Cross multiply
    132,356.40x = 198,422.94 × 57,420.12
  4. Step 4: Simplify right side
    132,356.40x = 11,393,469,025.55
  5. Step 5: Solve for x
    x = 11,393,469,025.55/132,356.40
  6. Step 6: Final answer
    x = 86,081.74

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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.