Home / 151,161.20-226,916.40-81,177.20

Finding the Fourth Proportional to 151,161.20, 226,916.40 and 81,177.20

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Solution

The fourth proportional to 151,161.20, 226,916.40 and 81,177.20 is: 121,859.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,161.20 : 226,916.40 = 81,177.20 : x
  2. Step 2: Convert to fraction form
    151,161.20/226,916.40 = 81,177.20/x
  3. Step 3: Cross multiply
    151,161.20x = 226,916.40 × 81,177.20
  4. Step 4: Simplify right side
    151,161.20x = 18,420,437,986.08
  5. Step 5: Solve for x
    x = 18,420,437,986.08/151,161.20
  6. Step 6: Final answer
    x = 121,859.56

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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.