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Finding the Fourth Proportional to 171,775.52, 257,739.96 and 66,602.70

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Solution

The fourth proportional to 171,775.52, 257,739.96 and 66,602.70 is: 99,933.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,775.52 : 257,739.96 = 66,602.70 : x
  2. Step 2: Convert to fraction form
    171,775.52/257,739.96 = 66,602.70/x
  3. Step 3: Cross multiply
    171,775.52x = 257,739.96 × 66,602.70
  4. Step 4: Simplify right side
    171,775.52x = 17,166,177,233.89
  5. Step 5: Solve for x
    x = 17,166,177,233.89/171,775.52
  6. Step 6: Final answer
    x = 99,933.78

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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.