Home / 123,058.09-169,820.16-66,469.46

Finding the Fourth Proportional to 123,058.09, 169,820.16 and 66,469.46

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Solution

The fourth proportional to 123,058.09, 169,820.16 and 66,469.46 is: 91,727.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,058.09 : 169,820.16 = 66,469.46 : x
  2. Step 2: Convert to fraction form
    123,058.09/169,820.16 = 66,469.46/x
  3. Step 3: Cross multiply
    123,058.09x = 169,820.16 × 66,469.46
  4. Step 4: Simplify right side
    123,058.09x = 11,287,854,332.31
  5. Step 5: Solve for x
    x = 11,287,854,332.31/123,058.09
  6. Step 6: Final answer
    x = 91,727.85

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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.