Home / 121,443.15-167,524.16-71,132.43

Finding the Fourth Proportional to 121,443.15, 167,524.16 and 71,132.43

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Solution

The fourth proportional to 121,443.15, 167,524.16 and 71,132.43 is: 98,123.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,443.15 : 167,524.16 = 71,132.43 : x
  2. Step 2: Convert to fraction form
    121,443.15/167,524.16 = 71,132.43/x
  3. Step 3: Cross multiply
    121,443.15x = 167,524.16 × 71,132.43
  4. Step 4: Simplify right side
    121,443.15x = 11,916,400,228.85
  5. Step 5: Solve for x
    x = 11,916,400,228.85/121,443.15
  6. Step 6: Final answer
    x = 98,123.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.