Home / 167,617.17-251,259.68-78,711.53

Finding the Fourth Proportional to 167,617.17, 251,259.68 and 78,711.53

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Solution

The fourth proportional to 167,617.17, 251,259.68 and 78,711.53 is: 117,989.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,617.17 : 251,259.68 = 78,711.53 : x
  2. Step 2: Convert to fraction form
    167,617.17/251,259.68 = 78,711.53/x
  3. Step 3: Cross multiply
    167,617.17x = 251,259.68 × 78,711.53
  4. Step 4: Simplify right side
    167,617.17x = 19,777,032,780.59
  5. Step 5: Solve for x
    x = 19,777,032,780.59/167,617.17
  6. Step 6: Final answer
    x = 117,989.30

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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.