Home / 125,116.97-172,659.47-71,400.60

Finding the Fourth Proportional to 125,116.97, 172,659.47 and 71,400.60

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Solution

The fourth proportional to 125,116.97, 172,659.47 and 71,400.60 is: 98,531.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,116.97 : 172,659.47 = 71,400.60 : x
  2. Step 2: Convert to fraction form
    125,116.97/172,659.47 = 71,400.60/x
  3. Step 3: Cross multiply
    125,116.97x = 172,659.47 × 71,400.60
  4. Step 4: Simplify right side
    125,116.97x = 12,327,989,396.68
  5. Step 5: Solve for x
    x = 12,327,989,396.68/125,116.97
  6. Step 6: Final answer
    x = 98,531.72

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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.