Home / 87,435.20-131,153.58-25,105.68

Finding the Fourth Proportional to 87,435.20, 131,153.58 and 25,105.68

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Solution

The fourth proportional to 87,435.20, 131,153.58 and 25,105.68 is: 37,658.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,435.20 : 131,153.58 = 25,105.68 : x
  2. Step 2: Convert to fraction form
    87,435.20/131,153.58 = 25,105.68/x
  3. Step 3: Cross multiply
    87,435.20x = 131,153.58 × 25,105.68
  4. Step 4: Simplify right side
    87,435.20x = 3,292,699,810.33
  5. Step 5: Solve for x
    x = 3,292,699,810.33/87,435.20
  6. Step 6: Final answer
    x = 37,658.74

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1.5x scale

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.