Home / 121,422.13-167,562.54-71,121.13

Finding the Fourth Proportional to 121,422.13, 167,562.54 and 71,121.13

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Solution

The fourth proportional to 121,422.13, 167,562.54 and 71,121.13 is: 98,147.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,422.13 : 167,562.54 = 71,121.13 : x
  2. Step 2: Convert to fraction form
    121,422.13/167,562.54 = 71,121.13/x
  3. Step 3: Cross multiply
    121,422.13x = 167,562.54 × 71,121.13
  4. Step 4: Simplify right side
    121,422.13x = 11,917,237,190.47
  5. Step 5: Solve for x
    x = 11,917,237,190.47/121,422.13
  6. Step 6: Final answer
    x = 98,147.16

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.