Home / 102,381.26-141,297.60-57,063.38

Finding the Fourth Proportional to 102,381.26, 141,297.60 and 57,063.38

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Solution

The fourth proportional to 102,381.26, 141,297.60 and 57,063.38 is: 78,753.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,381.26 : 141,297.60 = 57,063.38 : x
  2. Step 2: Convert to fraction form
    102,381.26/141,297.60 = 57,063.38/x
  3. Step 3: Cross multiply
    102,381.26x = 141,297.60 × 57,063.38
  4. Step 4: Simplify right side
    102,381.26x = 8,062,917,935.40
  5. Step 5: Solve for x
    x = 8,062,917,935.40/102,381.26
  6. Step 6: Final answer
    x = 78,753.85

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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.