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Finding the Fourth Proportional to 144,446.83, 199,319.13 and 79,911.70

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Solution

The fourth proportional to 144,446.83, 199,319.13 and 79,911.70 is: 110,268.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,446.83 : 199,319.13 = 79,911.70 : x
  2. Step 2: Convert to fraction form
    144,446.83/199,319.13 = 79,911.70/x
  3. Step 3: Cross multiply
    144,446.83x = 199,319.13 × 79,911.70
  4. Step 4: Simplify right side
    144,446.83x = 15,927,930,520.82
  5. Step 5: Solve for x
    x = 15,927,930,520.82/144,446.83
  6. Step 6: Final answer
    x = 110,268.47

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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.