Home / 99,299.85-148,934.38-28,225.79

Finding the Fourth Proportional to 99,299.85, 148,934.38 and 28,225.79

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Solution

The fourth proportional to 99,299.85, 148,934.38 and 28,225.79 is: 42,334.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,299.85 : 148,934.38 = 28,225.79 : x
  2. Step 2: Convert to fraction form
    99,299.85/148,934.38 = 28,225.79/x
  3. Step 3: Cross multiply
    99,299.85x = 148,934.38 × 28,225.79
  4. Step 4: Simplify right side
    99,299.85x = 4,203,790,835.43
  5. Step 5: Solve for x
    x = 4,203,790,835.43/99,299.85
  6. Step 6: Final answer
    x = 42,334.31

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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.