Home / 110,186.40-165,433.20-68,714.40

Finding the Fourth Proportional to 110,186.40, 165,433.20 and 68,714.40

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Solution

The fourth proportional to 110,186.40, 165,433.20 and 68,714.40 is: 103,167.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,186.40 : 165,433.20 = 68,714.40 : x
  2. Step 2: Convert to fraction form
    110,186.40/165,433.20 = 68,714.40/x
  3. Step 3: Cross multiply
    110,186.40x = 165,433.20 × 68,714.40
  4. Step 4: Simplify right side
    110,186.40x = 11,367,643,078.08
  5. Step 5: Solve for x
    x = 11,367,643,078.08/110,186.40
  6. Step 6: Final answer
    x = 103,167.39

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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.