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Finding the Fourth Proportional to 123,080.55, 169,851.33 and 66,491.94

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Solution

The fourth proportional to 123,080.55, 169,851.33 and 66,491.94 is: 91,758.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,080.55 : 169,851.33 = 66,491.94 : x
  2. Step 2: Convert to fraction form
    123,080.55/169,851.33 = 66,491.94/x
  3. Step 3: Cross multiply
    123,080.55x = 169,851.33 × 66,491.94
  4. Step 4: Simplify right side
    123,080.55x = 11,293,744,443.28
  5. Step 5: Solve for x
    x = 11,293,744,443.28/123,080.55
  6. Step 6: Final answer
    x = 91,758.97

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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.