Home / 121,279.96-167,366.45-67,565.11

Finding the Fourth Proportional to 121,279.96, 167,366.45 and 67,565.11

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Solution

The fourth proportional to 121,279.96, 167,366.45 and 67,565.11 is: 93,239.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,279.96 : 167,366.45 = 67,565.11 : x
  2. Step 2: Convert to fraction form
    121,279.96/167,366.45 = 67,565.11/x
  3. Step 3: Cross multiply
    121,279.96x = 167,366.45 × 67,565.11
  4. Step 4: Simplify right side
    121,279.96x = 11,308,132,604.56
  5. Step 5: Solve for x
    x = 11,308,132,604.56/121,279.96
  6. Step 6: Final answer
    x = 93,239.91

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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.