Home / 103,198.68-142,402.26-57,876.75

Finding the Fourth Proportional to 103,198.68, 142,402.26 and 57,876.75

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Solution

The fourth proportional to 103,198.68, 142,402.26 and 57,876.75 is: 79,863.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,198.68 : 142,402.26 = 57,876.75 : x
  2. Step 2: Convert to fraction form
    103,198.68/142,402.26 = 57,876.75/x
  3. Step 3: Cross multiply
    103,198.68x = 142,402.26 × 57,876.75
  4. Step 4: Simplify right side
    103,198.68x = 8,241,780,001.46
  5. Step 5: Solve for x
    x = 8,241,780,001.46/103,198.68
  6. Step 6: Final answer
    x = 79,863.23

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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.