Home / 180,279.35-270,340.11-85,536.55

Finding the Fourth Proportional to 180,279.35, 270,340.11 and 85,536.55

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Solution

The fourth proportional to 180,279.35, 270,340.11 and 85,536.55 is: 128,267.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,279.35 : 270,340.11 = 85,536.55 : x
  2. Step 2: Convert to fraction form
    180,279.35/270,340.11 = 85,536.55/x
  3. Step 3: Cross multiply
    180,279.35x = 270,340.11 × 85,536.55
  4. Step 4: Simplify right side
    180,279.35x = 23,123,958,984.32
  5. Step 5: Solve for x
    x = 23,123,958,984.32/180,279.35
  6. Step 6: Final answer
    x = 128,267.37

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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.