Home / 108,304.90-162,433.05-71,125.90

Finding the Fourth Proportional to 108,304.90, 162,433.05 and 71,125.90

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Solution

The fourth proportional to 108,304.90, 162,433.05 and 71,125.90 is: 106,672.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,304.90 : 162,433.05 = 71,125.90 : x
  2. Step 2: Convert to fraction form
    108,304.90/162,433.05 = 71,125.90/x
  3. Step 3: Cross multiply
    108,304.90x = 162,433.05 × 71,125.90
  4. Step 4: Simplify right side
    108,304.90x = 11,553,196,871.00
  5. Step 5: Solve for x
    x = 11,553,196,871.00/108,304.90
  6. Step 6: Final answer
    x = 106,672.89

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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.