Home / 108,979.76-163,466.40-30,098.72

Finding the Fourth Proportional to 108,979.76, 163,466.40 and 30,098.72

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Solution

The fourth proportional to 108,979.76, 163,466.40 and 30,098.72 is: 45,147.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,979.76 : 163,466.40 = 30,098.72 : x
  2. Step 2: Convert to fraction form
    108,979.76/163,466.40 = 30,098.72/x
  3. Step 3: Cross multiply
    108,979.76x = 163,466.40 × 30,098.72
  4. Step 4: Simplify right side
    108,979.76x = 4,920,129,403.01
  5. Step 5: Solve for x
    x = 4,920,129,403.01/108,979.76
  6. Step 6: Final answer
    x = 45,147.19

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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.