Home / 123,488.08-170,414.34-66,899.44

Finding the Fourth Proportional to 123,488.08, 170,414.34 and 66,899.44

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Solution

The fourth proportional to 123,488.08, 170,414.34 and 66,899.44 is: 92,321.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,488.08 : 170,414.34 = 66,899.44 : x
  2. Step 2: Convert to fraction form
    123,488.08/170,414.34 = 66,899.44/x
  3. Step 3: Cross multiply
    123,488.08x = 170,414.34 × 66,899.44
  4. Step 4: Simplify right side
    123,488.08x = 11,400,623,913.97
  5. Step 5: Solve for x
    x = 11,400,623,913.97/123,488.08
  6. Step 6: Final answer
    x = 92,321.65

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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.