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Finding the Fourth Proportional to 171,037.80, 256,167.90 and 87,834.60

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Solution

The fourth proportional to 171,037.80, 256,167.90 and 87,834.60 is: 131,552.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,037.80 : 256,167.90 = 87,834.60 : x
  2. Step 2: Convert to fraction form
    171,037.80/256,167.90 = 87,834.60/x
  3. Step 3: Cross multiply
    171,037.80x = 256,167.90 × 87,834.60
  4. Step 4: Simplify right side
    171,037.80x = 22,500,405,029.34
  5. Step 5: Solve for x
    x = 22,500,405,029.34/171,037.80
  6. Step 6: Final answer
    x = 131,552.24

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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.