Home / 151,098.20-226,821.90-81,114.20

Finding the Fourth Proportional to 151,098.20, 226,821.90 and 81,114.20

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Solution

The fourth proportional to 151,098.20, 226,821.90 and 81,114.20 is: 121,765.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,098.20 : 226,821.90 = 81,114.20 : x
  2. Step 2: Convert to fraction form
    151,098.20/226,821.90 = 81,114.20/x
  3. Step 3: Cross multiply
    151,098.20x = 226,821.90 × 81,114.20
  4. Step 4: Simplify right side
    151,098.20x = 18,398,476,960.98
  5. Step 5: Solve for x
    x = 18,398,476,960.98/151,098.20
  6. Step 6: Final answer
    x = 121,765.03

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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.