Home / 127,419.90-175,580.40-98,564.28

Finding the Fourth Proportional to 127,419.90, 175,580.40 and 98,564.28

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Solution

The fourth proportional to 127,419.90, 175,580.40 and 98,564.28 is: 135,818.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,419.90 : 175,580.40 = 98,564.28 : x
  2. Step 2: Convert to fraction form
    127,419.90/175,580.40 = 98,564.28/x
  3. Step 3: Cross multiply
    127,419.90x = 175,580.40 × 98,564.28
  4. Step 4: Simplify right side
    127,419.90x = 17,305,955,708.11
  5. Step 5: Solve for x
    x = 17,305,955,708.11/127,419.90
  6. Step 6: Final answer
    x = 135,818.31

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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.