Home / 345,676.18-518,590.38-105,791.92

Finding the Fourth Proportional to 345,676.18, 518,590.38 and 105,791.92

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Solution

The fourth proportional to 345,676.18, 518,590.38 and 105,791.92 is: 158,711.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,676.18 : 518,590.38 = 105,791.92 : x
  2. Step 2: Convert to fraction form
    345,676.18/518,590.38 = 105,791.92/x
  3. Step 3: Cross multiply
    345,676.18x = 518,590.38 × 105,791.92
  4. Step 4: Simplify right side
    345,676.18x = 54,862,672,147.04
  5. Step 5: Solve for x
    x = 54,862,672,147.04/345,676.18
  6. Step 6: Final answer
    x = 158,711.18

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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.