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Finding the Fourth Proportional to 181,668.75, 250,702.88 and 102,180.75

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Solution

The fourth proportional to 181,668.75, 250,702.88 and 102,180.75 is: 141,009.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,668.75 : 250,702.88 = 102,180.75 : x
  2. Step 2: Convert to fraction form
    181,668.75/250,702.88 = 102,180.75/x
  3. Step 3: Cross multiply
    181,668.75x = 250,702.88 × 102,180.75
  4. Step 4: Simplify right side
    181,668.75x = 25,617,007,794.66
  5. Step 5: Solve for x
    x = 25,617,007,794.66/181,668.75
  6. Step 6: Final answer
    x = 141,009.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.