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Finding the Fourth Proportional to 110,281.80, 165,422.70 and 68,195.40

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Solution

The fourth proportional to 110,281.80, 165,422.70 and 68,195.40 is: 102,293.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,281.80 : 165,422.70 = 68,195.40 : x
  2. Step 2: Convert to fraction form
    110,281.80/165,422.70 = 68,195.40/x
  3. Step 3: Cross multiply
    110,281.80x = 165,422.70 × 68,195.40
  4. Step 4: Simplify right side
    110,281.80x = 11,281,067,195.58
  5. Step 5: Solve for x
    x = 11,281,067,195.58/110,281.80
  6. Step 6: Final answer
    x = 102,293.10

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1.5x scale

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.