Home / 144,531.55-199,453.76-80,869.38

Finding the Fourth Proportional to 144,531.55, 199,453.76 and 80,869.38

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Solution

The fourth proportional to 144,531.55, 199,453.76 and 80,869.38 is: 111,599.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,531.55 : 199,453.76 = 80,869.38 : x
  2. Step 2: Convert to fraction form
    144,531.55/199,453.76 = 80,869.38/x
  3. Step 3: Cross multiply
    144,531.55x = 199,453.76 × 80,869.38
  4. Step 4: Simplify right side
    144,531.55x = 16,129,701,909.87
  5. Step 5: Solve for x
    x = 16,129,701,909.87/144,531.55
  6. Step 6: Final answer
    x = 111,599.87

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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.