Home / 108,851.20-163,315.20-38,732.80

Finding the Fourth Proportional to 108,851.20, 163,315.20 and 38,732.80

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Solution

The fourth proportional to 108,851.20, 163,315.20 and 38,732.80 is: 58,112.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,851.20 : 163,315.20 = 38,732.80 : x
  2. Step 2: Convert to fraction form
    108,851.20/163,315.20 = 38,732.80/x
  3. Step 3: Cross multiply
    108,851.20x = 163,315.20 × 38,732.80
  4. Step 4: Simplify right side
    108,851.20x = 6,325,654,978.56
  5. Step 5: Solve for x
    x = 6,325,654,978.56/108,851.20
  6. Step 6: Final answer
    x = 58,112.86

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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.