Home / 123,747.40-185,621.10-108,985.15

Finding the Fourth Proportional to 123,747.40, 185,621.10 and 108,985.15

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Solution

The fourth proportional to 123,747.40, 185,621.10 and 108,985.15 is: 163,477.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,747.40 : 185,621.10 = 108,985.15 : x
  2. Step 2: Convert to fraction form
    123,747.40/185,621.10 = 108,985.15/x
  3. Step 3: Cross multiply
    123,747.40x = 185,621.10 × 108,985.15
  4. Step 4: Simplify right side
    123,747.40x = 20,229,943,426.67
  5. Step 5: Solve for x
    x = 20,229,943,426.67/123,747.40
  6. Step 6: Final answer
    x = 163,477.73

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Similar ratio
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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.