Home / 123,476.16-170,397.18-66,887.76

Finding the Fourth Proportional to 123,476.16, 170,397.18 and 66,887.76

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Solution

The fourth proportional to 123,476.16, 170,397.18 and 66,887.76 is: 92,305.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,476.16 : 170,397.18 = 66,887.76 : x
  2. Step 2: Convert to fraction form
    123,476.16/170,397.18 = 66,887.76/x
  3. Step 3: Cross multiply
    123,476.16x = 170,397.18 × 66,887.76
  4. Step 4: Simplify right side
    123,476.16x = 11,397,485,680.52
  5. Step 5: Solve for x
    x = 11,397,485,680.52/123,476.16
  6. Step 6: Final answer
    x = 92,305.15

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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.