Home / 125,319.68-172,944.96-68,734.88

Finding the Fourth Proportional to 125,319.68, 172,944.96 and 68,734.88

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Solution

The fourth proportional to 125,319.68, 172,944.96 and 68,734.88 is: 94,856.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,319.68 : 172,944.96 = 68,734.88 : x
  2. Step 2: Convert to fraction form
    125,319.68/172,944.96 = 68,734.88/x
  3. Step 3: Cross multiply
    125,319.68x = 172,944.96 × 68,734.88
  4. Step 4: Simplify right side
    125,319.68x = 11,887,351,072.20
  5. Step 5: Solve for x
    x = 11,887,351,072.20/125,319.68
  6. Step 6: Final answer
    x = 94,856.22

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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.