Home / 108,521.20-162,781.80-64,125.10

Finding the Fourth Proportional to 108,521.20, 162,781.80 and 64,125.10

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Solution

The fourth proportional to 108,521.20, 162,781.80 and 64,125.10 is: 96,187.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,521.20 : 162,781.80 = 64,125.10 : x
  2. Step 2: Convert to fraction form
    108,521.20/162,781.80 = 64,125.10/x
  3. Step 3: Cross multiply
    108,521.20x = 162,781.80 × 64,125.10
  4. Step 4: Simplify right side
    108,521.20x = 10,438,399,203.18
  5. Step 5: Solve for x
    x = 10,438,399,203.18/108,521.20
  6. Step 6: Final answer
    x = 96,187.65

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1.5x scale

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.