Home / 144,380.65-199,239.57-79,845.69

Finding the Fourth Proportional to 144,380.65, 199,239.57 and 79,845.69

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Solution

The fourth proportional to 144,380.65, 199,239.57 and 79,845.69 is: 110,183.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,380.65 : 199,239.57 = 79,845.69 : x
  2. Step 2: Convert to fraction form
    144,380.65/199,239.57 = 79,845.69/x
  3. Step 3: Cross multiply
    144,380.65x = 199,239.57 × 79,845.69
  4. Step 4: Simplify right side
    144,380.65x = 15,908,420,941.95
  5. Step 5: Solve for x
    x = 15,908,420,941.95/144,380.65
  6. Step 6: Final answer
    x = 110,183.89

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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.