Home / 123,380.56-170,266.32-66,793.12

Finding the Fourth Proportional to 123,380.56, 170,266.32 and 66,793.12

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Solution

The fourth proportional to 123,380.56, 170,266.32 and 66,793.12 is: 92,175.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,380.56 : 170,266.32 = 66,793.12 : x
  2. Step 2: Convert to fraction form
    123,380.56/170,266.32 = 66,793.12/x
  3. Step 3: Cross multiply
    123,380.56x = 170,266.32 × 66,793.12
  4. Step 4: Simplify right side
    123,380.56x = 11,372,618,743.72
  5. Step 5: Solve for x
    x = 11,372,618,743.72/123,380.56
  6. Step 6: Final answer
    x = 92,175.13

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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.