Home / 78,147.81-116,691.24-62,174.21

Finding the Fourth Proportional to 78,147.81, 116,691.24 and 62,174.21

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Solution

The fourth proportional to 78,147.81, 116,691.24 and 62,174.21 is: 92,839.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,147.81 : 116,691.24 = 62,174.21 : x
  2. Step 2: Convert to fraction form
    78,147.81/116,691.24 = 62,174.21/x
  3. Step 3: Cross multiply
    78,147.81x = 116,691.24 × 62,174.21
  4. Step 4: Simplify right side
    78,147.81x = 7,255,185,310.62
  5. Step 5: Solve for x
    x = 7,255,185,310.62/78,147.81
  6. Step 6: Final answer
    x = 92,839.27

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.