Home / 127,517.16-175,869-113,187.48

Finding the Fourth Proportional to 127,517.16, 175,869 and 113,187.48

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Solution

The fourth proportional to 127,517.16, 175,869 and 113,187.48 is: 156,105.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,517.16 : 175,869 = 113,187.48 : x
  2. Step 2: Convert to fraction form
    127,517.16/175,869 = 113,187.48/x
  3. Step 3: Cross multiply
    127,517.16x = 175,869 × 113,187.48
  4. Step 4: Simplify right side
    127,517.16x = 19,906,168,920.12
  5. Step 5: Solve for x
    x = 19,906,168,920.12/127,517.16
  6. Step 6: Final answer
    x = 156,105.81

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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.