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Finding the Fourth Proportional to 181,269.70, 250,145.23 and 100,702.28

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Solution

The fourth proportional to 181,269.70, 250,145.23 and 100,702.28 is: 138,965.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,269.70 : 250,145.23 = 100,702.28 : x
  2. Step 2: Convert to fraction form
    181,269.70/250,145.23 = 100,702.28/x
  3. Step 3: Cross multiply
    181,269.70x = 250,145.23 × 100,702.28
  4. Step 4: Simplify right side
    181,269.70x = 25,190,194,992.12
  5. Step 5: Solve for x
    x = 25,190,194,992.12/181,269.70
  6. Step 6: Final answer
    x = 138,965.28

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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.