Home / 123,058.57-169,820.82-66,469.95

Finding the Fourth Proportional to 123,058.57, 169,820.82 and 66,469.95

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Solution

The fourth proportional to 123,058.57, 169,820.82 and 66,469.95 is: 91,728.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,058.57 : 169,820.82 = 66,469.95 : x
  2. Step 2: Convert to fraction form
    123,058.57/169,820.82 = 66,469.95/x
  3. Step 3: Cross multiply
    123,058.57x = 169,820.82 × 66,469.95
  4. Step 4: Simplify right side
    123,058.57x = 11,287,980,731.43
  5. Step 5: Solve for x
    x = 11,287,980,731.43/123,058.57
  6. Step 6: Final answer
    x = 91,728.52

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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.