Home / 123,479.74-170,402.88-66,891.16

Finding the Fourth Proportional to 123,479.74, 170,402.88 and 66,891.16

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Solution

The fourth proportional to 123,479.74, 170,402.88 and 66,891.16 is: 92,310.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,479.74 : 170,402.88 = 66,891.16 : x
  2. Step 2: Convert to fraction form
    123,479.74/170,402.88 = 66,891.16/x
  3. Step 3: Cross multiply
    123,479.74x = 170,402.88 × 66,891.16
  4. Step 4: Simplify right side
    123,479.74x = 11,398,446,310.54
  5. Step 5: Solve for x
    x = 11,398,446,310.54/123,479.74
  6. Step 6: Final answer
    x = 92,310.26

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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.