Home / 123,059.19-169,821.75-66,470.56

Finding the Fourth Proportional to 123,059.19, 169,821.75 and 66,470.56

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Solution

The fourth proportional to 123,059.19, 169,821.75 and 66,470.56 is: 91,729.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,059.19 : 169,821.75 = 66,470.56 : x
  2. Step 2: Convert to fraction form
    123,059.19/169,821.75 = 66,470.56/x
  3. Step 3: Cross multiply
    123,059.19x = 169,821.75 × 66,470.56
  4. Step 4: Simplify right side
    123,059.19x = 11,288,147,081.06
  5. Step 5: Solve for x
    x = 11,288,147,081.06/123,059.19
  6. Step 6: Final answer
    x = 91,729.41

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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.