Home / 153,868.20-230,385.24-79,840.68

Finding the Fourth Proportional to 153,868.20, 230,385.24 and 79,840.68

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Solution

The fourth proportional to 153,868.20, 230,385.24 and 79,840.68 is: 119,544.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,868.20 : 230,385.24 = 79,840.68 : x
  2. Step 2: Convert to fraction form
    153,868.20/230,385.24 = 79,840.68/x
  3. Step 3: Cross multiply
    153,868.20x = 230,385.24 × 79,840.68
  4. Step 4: Simplify right side
    153,868.20x = 18,394,114,223.56
  5. Step 5: Solve for x
    x = 18,394,114,223.56/153,868.20
  6. Step 6: Final answer
    x = 119,544.61

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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.