Home / 108,729.20-163,007.40-59,481.20

Finding the Fourth Proportional to 108,729.20, 163,007.40 and 59,481.20

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Solution

The fourth proportional to 108,729.20, 163,007.40 and 59,481.20 is: 89,174.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,729.20 : 163,007.40 = 59,481.20 : x
  2. Step 2: Convert to fraction form
    108,729.20/163,007.40 = 59,481.20/x
  3. Step 3: Cross multiply
    108,729.20x = 163,007.40 × 59,481.20
  4. Step 4: Simplify right side
    108,729.20x = 9,695,875,760.88
  5. Step 5: Solve for x
    x = 9,695,875,760.88/108,729.20
  6. Step 6: Final answer
    x = 89,174.53

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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.