Home / 102,761.44-141,799.94-57,434.65

Finding the Fourth Proportional to 102,761.44, 141,799.94 and 57,434.65

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Solution

The fourth proportional to 102,761.44, 141,799.94 and 57,434.65 is: 79,253.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,761.44 : 141,799.94 = 57,434.65 : x
  2. Step 2: Convert to fraction form
    102,761.44/141,799.94 = 57,434.65/x
  3. Step 3: Cross multiply
    102,761.44x = 141,799.94 × 57,434.65
  4. Step 4: Simplify right side
    102,761.44x = 8,144,228,927.75
  5. Step 5: Solve for x
    x = 8,144,228,927.75/102,761.44
  6. Step 6: Final answer
    x = 79,253.75

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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.