Home / 103,932.57-155,782.22-51,378.96

Finding the Fourth Proportional to 103,932.57, 155,782.22 and 51,378.96

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Solution

The fourth proportional to 103,932.57, 155,782.22 and 51,378.96 is: 77,010.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,932.57 : 155,782.22 = 51,378.96 : x
  2. Step 2: Convert to fraction form
    103,932.57/155,782.22 = 51,378.96/x
  3. Step 3: Cross multiply
    103,932.57x = 155,782.22 × 51,378.96
  4. Step 4: Simplify right side
    103,932.57x = 8,003,928,193.20
  5. Step 5: Solve for x
    x = 8,003,928,193.20/103,932.57
  6. Step 6: Final answer
    x = 77,010.78

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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.