Home / 154,227.30-212,846.43-86,249.85

Finding the Fourth Proportional to 154,227.30, 212,846.43 and 86,249.85

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Solution

The fourth proportional to 154,227.30, 212,846.43 and 86,249.85 is: 119,031.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,227.30 : 212,846.43 = 86,249.85 : x
  2. Step 2: Convert to fraction form
    154,227.30/212,846.43 = 86,249.85/x
  3. Step 3: Cross multiply
    154,227.30x = 212,846.43 × 86,249.85
  4. Step 4: Simplify right side
    154,227.30x = 18,357,972,660.54
  5. Step 5: Solve for x
    x = 18,357,972,660.54/154,227.30
  6. Step 6: Final answer
    x = 119,031.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.