Home / 132,617.16-198,967.25-85,285.71

Finding the Fourth Proportional to 132,617.16, 198,967.25 and 85,285.71

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Solution

The fourth proportional to 132,617.16, 198,967.25 and 85,285.71 is: 127,955.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,617.16 : 198,967.25 = 85,285.71 : x
  2. Step 2: Convert to fraction form
    132,617.16/198,967.25 = 85,285.71/x
  3. Step 3: Cross multiply
    132,617.16x = 198,967.25 × 85,285.71
  4. Step 4: Simplify right side
    132,617.16x = 16,969,062,756.57
  5. Step 5: Solve for x
    x = 16,969,062,756.57/132,617.16
  6. Step 6: Final answer
    x = 127,955.26

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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.