Home / 167,757.28-251,513.80-78,961.44

Finding the Fourth Proportional to 167,757.28, 251,513.80 and 78,961.44

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Solution

The fourth proportional to 167,757.28, 251,513.80 and 78,961.44 is: 118,384.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,757.28 : 251,513.80 = 78,961.44 : x
  2. Step 2: Convert to fraction form
    167,757.28/251,513.80 = 78,961.44/x
  3. Step 3: Cross multiply
    167,757.28x = 251,513.80 × 78,961.44
  4. Step 4: Simplify right side
    167,757.28x = 19,859,891,827.87
  5. Step 5: Solve for x
    x = 19,859,891,827.87/167,757.28
  6. Step 6: Final answer
    x = 118,384.68

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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.