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Finding the Fourth Proportional to 144,379.65, 199,238.19 and 79,844.69

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Solution

The fourth proportional to 144,379.65, 199,238.19 and 79,844.69 is: 110,182.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,379.65 : 199,238.19 = 79,844.69 : x
  2. Step 2: Convert to fraction form
    144,379.65/199,238.19 = 79,844.69/x
  3. Step 3: Cross multiply
    144,379.65x = 199,238.19 × 79,844.69
  4. Step 4: Simplify right side
    144,379.65x = 15,908,111,516.71
  5. Step 5: Solve for x
    x = 15,908,111,516.71/144,379.65
  6. Step 6: Final answer
    x = 110,182.51

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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.