Home / 180,278.35-270,338.61-85,535.55

Finding the Fourth Proportional to 180,278.35, 270,338.61 and 85,535.55

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Solution

The fourth proportional to 180,278.35, 270,338.61 and 85,535.55 is: 128,265.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,278.35 : 270,338.61 = 85,535.55 : x
  2. Step 2: Convert to fraction form
    180,278.35/270,338.61 = 85,535.55/x
  3. Step 3: Cross multiply
    180,278.35x = 270,338.61 × 85,535.55
  4. Step 4: Simplify right side
    180,278.35x = 23,123,561,692.59
  5. Step 5: Solve for x
    x = 23,123,561,692.59/180,278.35
  6. Step 6: Final answer
    x = 128,265.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.