Home / 99,078.20-148,529.82-75,808.52

Finding the Fourth Proportional to 99,078.20, 148,529.82 and 75,808.52

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Solution

The fourth proportional to 99,078.20, 148,529.82 and 75,808.52 is: 113,645.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,078.20 : 148,529.82 = 75,808.52 : x
  2. Step 2: Convert to fraction form
    99,078.20/148,529.82 = 75,808.52/x
  3. Step 3: Cross multiply
    99,078.20x = 148,529.82 × 75,808.52
  4. Step 4: Simplify right side
    99,078.20x = 11,259,825,830.07
  5. Step 5: Solve for x
    x = 11,259,825,830.07/99,078.20
  6. Step 6: Final answer
    x = 113,645.85

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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.