Home / 110,454.40-165,517.76-81,127.04

Finding the Fourth Proportional to 110,454.40, 165,517.76 and 81,127.04

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Solution

The fourth proportional to 110,454.40, 165,517.76 and 81,127.04 is: 121,570.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,454.40 : 165,517.76 = 81,127.04 : x
  2. Step 2: Convert to fraction form
    110,454.40/165,517.76 = 81,127.04/x
  3. Step 3: Cross multiply
    110,454.40x = 165,517.76 × 81,127.04
  4. Step 4: Simplify right side
    110,454.40x = 13,427,965,936.23
  5. Step 5: Solve for x
    x = 13,427,965,936.23/110,454.40
  6. Step 6: Final answer
    x = 121,570.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.