Home / 105,791.21-158,713.07-52,508.20

Finding the Fourth Proportional to 105,791.21, 158,713.07 and 52,508.20

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Solution

The fourth proportional to 105,791.21, 158,713.07 and 52,508.20 is: 78,775.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,791.21 : 158,713.07 = 52,508.20 : x
  2. Step 2: Convert to fraction form
    105,791.21/158,713.07 = 52,508.20/x
  3. Step 3: Cross multiply
    105,791.21x = 158,713.07 × 52,508.20
  4. Step 4: Simplify right side
    105,791.21x = 8,333,737,555.80
  5. Step 5: Solve for x
    x = 8,333,737,555.80/105,791.21
  6. Step 6: Final answer
    x = 78,775.33

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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.