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Finding the Fourth Proportional to 171,125.68, 256,474.68 and 82,355.35

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Solution

The fourth proportional to 171,125.68, 256,474.68 and 82,355.35 is: 123,430.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,125.68 : 256,474.68 = 82,355.35 : x
  2. Step 2: Convert to fraction form
    171,125.68/256,474.68 = 82,355.35/x
  3. Step 3: Cross multiply
    171,125.68x = 256,474.68 × 82,355.35
  4. Step 4: Simplify right side
    171,125.68x = 21,122,062,037.54
  5. Step 5: Solve for x
    x = 21,122,062,037.54/171,125.68
  6. Step 6: Final answer
    x = 123,430.11

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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.