Home / 121,240.80-167,302.08-67,517.28

Finding the Fourth Proportional to 121,240.80, 167,302.08 and 67,517.28

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Solution

The fourth proportional to 121,240.80, 167,302.08 and 67,517.28 is: 93,168.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,240.80 : 167,302.08 = 67,517.28 : x
  2. Step 2: Convert to fraction form
    121,240.80/167,302.08 = 67,517.28/x
  3. Step 3: Cross multiply
    121,240.80x = 167,302.08 × 67,517.28
  4. Step 4: Simplify right side
    121,240.80x = 11,295,781,379.94
  5. Step 5: Solve for x
    x = 11,295,781,379.94/121,240.80
  6. Step 6: Final answer
    x = 93,168.15

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1.5x scale

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.