Home / 157,441.30-217,262.46-85,819.78

Finding the Fourth Proportional to 157,441.30, 217,262.46 and 85,819.78

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Solution

The fourth proportional to 157,441.30, 217,262.46 and 85,819.78 is: 118,427.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,441.30 : 217,262.46 = 85,819.78 : x
  2. Step 2: Convert to fraction form
    157,441.30/217,262.46 = 85,819.78/x
  3. Step 3: Cross multiply
    157,441.30x = 217,262.46 × 85,819.78
  4. Step 4: Simplify right side
    157,441.30x = 18,645,416,519.46
  5. Step 5: Solve for x
    x = 18,645,416,519.46/157,441.30
  6. Step 6: Final answer
    x = 118,427.73

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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.