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Finding the Fourth Proportional to 144,026.30, 216,049.82 and 55,279.80

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Solution

The fourth proportional to 144,026.30, 216,049.82 and 55,279.80 is: 82,923.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,026.30 : 216,049.82 = 55,279.80 : x
  2. Step 2: Convert to fraction form
    144,026.30/216,049.82 = 55,279.80/x
  3. Step 3: Cross multiply
    144,026.30x = 216,049.82 × 55,279.80
  4. Step 4: Simplify right side
    144,026.30x = 11,943,191,201.23
  5. Step 5: Solve for x
    x = 11,943,191,201.23/144,026.30
  6. Step 6: Final answer
    x = 82,923.69

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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.