Home / 99,105.28-148,657.46-28,027.78

Finding the Fourth Proportional to 99,105.28, 148,657.46 and 28,027.78

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Solution

The fourth proportional to 99,105.28, 148,657.46 and 28,027.78 is: 42,041.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,105.28 : 148,657.46 = 28,027.78 : x
  2. Step 2: Convert to fraction form
    99,105.28/148,657.46 = 28,027.78/x
  3. Step 3: Cross multiply
    99,105.28x = 148,657.46 × 28,027.78
  4. Step 4: Simplify right side
    99,105.28x = 4,166,538,584.24
  5. Step 5: Solve for x
    x = 4,166,538,584.24/99,105.28
  6. Step 6: Final answer
    x = 42,041.54

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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.