Home / 121,261.86-167,344.38-67,545.90

Finding the Fourth Proportional to 121,261.86, 167,344.38 and 67,545.90

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Solution

The fourth proportional to 121,261.86, 167,344.38 and 67,545.90 is: 93,215.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,261.86 : 167,344.38 = 67,545.90 : x
  2. Step 2: Convert to fraction form
    121,261.86/167,344.38 = 67,545.90/x
  3. Step 3: Cross multiply
    121,261.86x = 167,344.38 × 67,545.90
  4. Step 4: Simplify right side
    121,261.86x = 11,303,426,757.04
  5. Step 5: Solve for x
    x = 11,303,426,757.04/121,261.86
  6. Step 6: Final answer
    x = 93,215.02

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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.