Home / 121,255.57-167,310.52-67,539.21

Finding the Fourth Proportional to 121,255.57, 167,310.52 and 67,539.21

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Solution

The fourth proportional to 121,255.57, 167,310.52 and 67,539.21 is: 93,191.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,255.57 : 167,310.52 = 67,539.21 : x
  2. Step 2: Convert to fraction form
    121,255.57/167,310.52 = 67,539.21/x
  3. Step 3: Cross multiply
    121,255.57x = 167,310.52 × 67,539.21
  4. Step 4: Simplify right side
    121,255.57x = 11,300,020,345.49
  5. Step 5: Solve for x
    x = 11,300,020,345.49/121,255.57
  6. Step 6: Final answer
    x = 93,191.76

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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.