Home / 83,278.38-124,916.46-20,097.98

Finding the Fourth Proportional to 83,278.38, 124,916.46 and 20,097.98

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Solution

The fourth proportional to 83,278.38, 124,916.46 and 20,097.98 is: 30,146.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,278.38 : 124,916.46 = 20,097.98 : x
  2. Step 2: Convert to fraction form
    83,278.38/124,916.46 = 20,097.98/x
  3. Step 3: Cross multiply
    83,278.38x = 124,916.46 × 20,097.98
  4. Step 4: Simplify right side
    83,278.38x = 2,510,568,514.75
  5. Step 5: Solve for x
    x = 2,510,568,514.75/83,278.38
  6. Step 6: Final answer
    x = 30,146.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.