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Finding the Fourth Proportional to 125,260.20, 172,860.48 and 71,552.40

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Solution

The fourth proportional to 125,260.20, 172,860.48 and 71,552.40 is: 98,743.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,260.20 : 172,860.48 = 71,552.40 : x
  2. Step 2: Convert to fraction form
    125,260.20/172,860.48 = 71,552.40/x
  3. Step 3: Cross multiply
    125,260.20x = 172,860.48 × 71,552.40
  4. Step 4: Simplify right side
    125,260.20x = 12,368,582,209.15
  5. Step 5: Solve for x
    x = 12,368,582,209.15/125,260.20
  6. Step 6: Final answer
    x = 98,743.11

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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.