Home / 102,828.70-141,910.83-57,510.90

Finding the Fourth Proportional to 102,828.70, 141,910.83 and 57,510.90

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Solution

The fourth proportional to 102,828.70, 141,910.83 and 57,510.90 is: 79,369.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,828.70 : 141,910.83 = 57,510.90 : x
  2. Step 2: Convert to fraction form
    102,828.70/141,910.83 = 57,510.90/x
  3. Step 3: Cross multiply
    102,828.70x = 141,910.83 × 57,510.90
  4. Step 4: Simplify right side
    102,828.70x = 8,161,419,553.05
  5. Step 5: Solve for x
    x = 8,161,419,553.05/102,828.70
  6. Step 6: Final answer
    x = 79,369.08

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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.