Home / 123,343.71-170,214.03-66,755.13

Finding the Fourth Proportional to 123,343.71, 170,214.03 and 66,755.13

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Solution

The fourth proportional to 123,343.71, 170,214.03 and 66,755.13 is: 92,121.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,343.71 : 170,214.03 = 66,755.13 : x
  2. Step 2: Convert to fraction form
    123,343.71/170,214.03 = 66,755.13/x
  3. Step 3: Cross multiply
    123,343.71x = 170,214.03 × 66,755.13
  4. Step 4: Simplify right side
    123,343.71x = 11,362,659,700.47
  5. Step 5: Solve for x
    x = 11,362,659,700.47/123,343.71
  6. Step 6: Final answer
    x = 92,121.92

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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.