Home / 123,057.09-169,818.78-66,468.46

Finding the Fourth Proportional to 123,057.09, 169,818.78 and 66,468.46

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Solution

The fourth proportional to 123,057.09, 169,818.78 and 66,468.46 is: 91,726.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,057.09 : 169,818.78 = 66,468.46 : x
  2. Step 2: Convert to fraction form
    123,057.09/169,818.78 = 66,468.46/x
  3. Step 3: Cross multiply
    123,057.09x = 169,818.78 × 66,468.46
  4. Step 4: Simplify right side
    123,057.09x = 11,287,592,785.68
  5. Step 5: Solve for x
    x = 11,287,592,785.68/123,057.09
  6. Step 6: Final answer
    x = 91,726.47

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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.