Home / 123,425.25-185,138.48-29,931

Finding the Fourth Proportional to 123,425.25, 185,138.48 and 29,931

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Solution

The fourth proportional to 123,425.25, 185,138.48 and 29,931 is: 44,896.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,425.25 : 185,138.48 = 29,931 : x
  2. Step 2: Convert to fraction form
    123,425.25/185,138.48 = 29,931/x
  3. Step 3: Cross multiply
    123,425.25x = 185,138.48 × 29,931
  4. Step 4: Simplify right side
    123,425.25x = 5,541,379,844.88
  5. Step 5: Solve for x
    x = 5,541,379,844.88/123,425.25
  6. Step 6: Final answer
    x = 44,896.65

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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.