Home / 99,276.30-148,963.05-75,575.70

Finding the Fourth Proportional to 99,276.30, 148,963.05 and 75,575.70

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Solution

The fourth proportional to 99,276.30, 148,963.05 and 75,575.70 is: 113,400.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,276.30 : 148,963.05 = 75,575.70 : x
  2. Step 2: Convert to fraction form
    99,276.30/148,963.05 = 75,575.70/x
  3. Step 3: Cross multiply
    99,276.30x = 148,963.05 × 75,575.70
  4. Step 4: Simplify right side
    99,276.30x = 11,257,986,777.89
  5. Step 5: Solve for x
    x = 11,257,986,777.89/99,276.30
  6. Step 6: Final answer
    x = 113,400.55

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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.