Home / 99,223.20-148,836.79-31,768.11

Finding the Fourth Proportional to 99,223.20, 148,836.79 and 31,768.11

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Solution

The fourth proportional to 99,223.20, 148,836.79 and 31,768.11 is: 47,652.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,223.20 : 148,836.79 = 31,768.11 : x
  2. Step 2: Convert to fraction form
    99,223.20/148,836.79 = 31,768.11/x
  3. Step 3: Cross multiply
    99,223.20x = 148,836.79 × 31,768.11
  4. Step 4: Simplify right side
    99,223.20x = 4,728,264,093.85
  5. Step 5: Solve for x
    x = 4,728,264,093.85/99,223.20
  6. Step 6: Final answer
    x = 47,652.81

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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.