Home / 108,375.40-162,951.90-91,268.20

Finding the Fourth Proportional to 108,375.40, 162,951.90 and 91,268.20

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Solution

The fourth proportional to 108,375.40, 162,951.90 and 91,268.20 is: 137,229.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,375.40 : 162,951.90 = 91,268.20 : x
  2. Step 2: Convert to fraction form
    108,375.40/162,951.90 = 91,268.20/x
  3. Step 3: Cross multiply
    108,375.40x = 162,951.90 × 91,268.20
  4. Step 4: Simplify right side
    108,375.40x = 14,872,326,599.58
  5. Step 5: Solve for x
    x = 14,872,326,599.58/108,375.40
  6. Step 6: Final answer
    x = 137,229.73

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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.