Home / 123,330.60-170,154.68-80,290.44

Finding the Fourth Proportional to 123,330.60, 170,154.68 and 80,290.44

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Solution

The fourth proportional to 123,330.60, 170,154.68 and 80,290.44 is: 110,773.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,330.60 : 170,154.68 = 80,290.44 : x
  2. Step 2: Convert to fraction form
    123,330.60/170,154.68 = 80,290.44/x
  3. Step 3: Cross multiply
    123,330.60x = 170,154.68 × 80,290.44
  4. Step 4: Simplify right side
    123,330.60x = 13,661,793,723.81
  5. Step 5: Solve for x
    x = 13,661,793,723.81/123,330.60
  6. Step 6: Final answer
    x = 110,773.76

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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.