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Finding the Fourth Proportional to 171,775.78, 257,542.94 and 75,667.40

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Solution

The fourth proportional to 171,775.78, 257,542.94 and 75,667.40 is: 113,447.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,775.78 : 257,542.94 = 75,667.40 : x
  2. Step 2: Convert to fraction form
    171,775.78/257,542.94 = 75,667.40/x
  3. Step 3: Cross multiply
    171,775.78x = 257,542.94 × 75,667.40
  4. Step 4: Simplify right side
    171,775.78x = 19,487,604,658.16
  5. Step 5: Solve for x
    x = 19,487,604,658.16/171,775.78
  6. Step 6: Final answer
    x = 113,447.92

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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.