Home / 180,278.85-270,339.36-85,536.05

Finding the Fourth Proportional to 180,278.85, 270,339.36 and 85,536.05

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Solution

The fourth proportional to 180,278.85, 270,339.36 and 85,536.05 is: 128,266.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,278.85 : 270,339.36 = 85,536.05 : x
  2. Step 2: Convert to fraction form
    180,278.85/270,339.36 = 85,536.05/x
  3. Step 3: Cross multiply
    180,278.85x = 270,339.36 × 85,536.05
  4. Step 4: Simplify right side
    180,278.85x = 23,123,759,662.23
  5. Step 5: Solve for x
    x = 23,123,759,662.23/180,278.85
  6. Step 6: Final answer
    x = 128,266.63

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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.