Home / 115,445.20-173,167.80-92,117.20

Finding the Fourth Proportional to 115,445.20, 173,167.80 and 92,117.20

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Solution

The fourth proportional to 115,445.20, 173,167.80 and 92,117.20 is: 138,175.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,445.20 : 173,167.80 = 92,117.20 : x
  2. Step 2: Convert to fraction form
    115,445.20/173,167.80 = 92,117.20/x
  3. Step 3: Cross multiply
    115,445.20x = 173,167.80 × 92,117.20
  4. Step 4: Simplify right side
    115,445.20x = 15,951,732,866.16
  5. Step 5: Solve for x
    x = 15,951,732,866.16/115,445.20
  6. Step 6: Final answer
    x = 138,175.80

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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.