Home / 151,107.20-226,835.40-81,123.20

Finding the Fourth Proportional to 151,107.20, 226,835.40 and 81,123.20

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Solution

The fourth proportional to 151,107.20, 226,835.40 and 81,123.20 is: 121,778.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,107.20 : 226,835.40 = 81,123.20 : x
  2. Step 2: Convert to fraction form
    151,107.20/226,835.40 = 81,123.20/x
  3. Step 3: Cross multiply
    151,107.20x = 226,835.40 × 81,123.20
  4. Step 4: Simplify right side
    151,107.20x = 18,401,613,521.28
  5. Step 5: Solve for x
    x = 18,401,613,521.28/151,107.20
  6. Step 6: Final answer
    x = 121,778.54

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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.