Home / 112,049.76-154,579.68-80,207.04

Finding the Fourth Proportional to 112,049.76, 154,579.68 and 80,207.04

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Solution

The fourth proportional to 112,049.76, 154,579.68 and 80,207.04 is: 110,650.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,049.76 : 154,579.68 = 80,207.04 : x
  2. Step 2: Convert to fraction form
    112,049.76/154,579.68 = 80,207.04/x
  3. Step 3: Cross multiply
    112,049.76x = 154,579.68 × 80,207.04
  4. Step 4: Simplify right side
    112,049.76x = 12,398,378,576.95
  5. Step 5: Solve for x
    x = 12,398,378,576.95/112,049.76
  6. Step 6: Final answer
    x = 110,650.65

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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.