Home / 144,516.52-199,432.80-80,869.28

Finding the Fourth Proportional to 144,516.52, 199,432.80 and 80,869.28

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Solution

The fourth proportional to 144,516.52, 199,432.80 and 80,869.28 is: 111,599.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,516.52 : 199,432.80 = 80,869.28 : x
  2. Step 2: Convert to fraction form
    144,516.52/199,432.80 = 80,869.28/x
  3. Step 3: Cross multiply
    144,516.52x = 199,432.80 × 80,869.28
  4. Step 4: Simplify right side
    144,516.52x = 16,127,986,944.38
  5. Step 5: Solve for x
    x = 16,127,986,944.38/144,516.52
  6. Step 6: Final answer
    x = 111,599.61

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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.