Home / 121,080.62-167,087.05-66,627.70

Finding the Fourth Proportional to 121,080.62, 167,087.05 and 66,627.70

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Solution

The fourth proportional to 121,080.62, 167,087.05 and 66,627.70 is: 91,943.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,080.62 : 167,087.05 = 66,627.70 : x
  2. Step 2: Convert to fraction form
    121,080.62/167,087.05 = 66,627.70/x
  3. Step 3: Cross multiply
    121,080.62x = 167,087.05 × 66,627.70
  4. Step 4: Simplify right side
    121,080.62x = 11,132,625,841.29
  5. Step 5: Solve for x
    x = 11,132,625,841.29/121,080.62
  6. Step 6: Final answer
    x = 91,943.91

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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.