Home / 108,067.20-162,196.80-63,638.40

Finding the Fourth Proportional to 108,067.20, 162,196.80 and 63,638.40

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Solution

The fourth proportional to 108,067.20, 162,196.80 and 63,638.40 is: 95,514.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,067.20 : 162,196.80 = 63,638.40 : x
  2. Step 2: Convert to fraction form
    108,067.20/162,196.80 = 63,638.40/x
  3. Step 3: Cross multiply
    108,067.20x = 162,196.80 × 63,638.40
  4. Step 4: Simplify right side
    108,067.20x = 10,321,944,837.12
  5. Step 5: Solve for x
    x = 10,321,944,837.12/108,067.20
  6. Step 6: Final answer
    x = 95,514.13

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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.