Home / 121,235.96-167,305.68-67,531.28

Finding the Fourth Proportional to 121,235.96, 167,305.68 and 67,531.28

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Solution

The fourth proportional to 121,235.96, 167,305.68 and 67,531.28 is: 93,193.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,235.96 : 167,305.68 = 67,531.28 : x
  2. Step 2: Convert to fraction form
    121,235.96/167,305.68 = 67,531.28/x
  3. Step 3: Cross multiply
    121,235.96x = 167,305.68 × 67,531.28
  4. Step 4: Simplify right side
    121,235.96x = 11,298,366,721.67
  5. Step 5: Solve for x
    x = 11,298,366,721.67/121,235.96
  6. Step 6: Final answer
    x = 93,193.20

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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.