Home / 107,565.20-161,328.32-47,620.56

Finding the Fourth Proportional to 107,565.20, 161,328.32 and 47,620.56

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Solution

The fourth proportional to 107,565.20, 161,328.32 and 47,620.56 is: 71,422.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,565.20 : 161,328.32 = 47,620.56 : x
  2. Step 2: Convert to fraction form
    107,565.20/161,328.32 = 47,620.56/x
  3. Step 3: Cross multiply
    107,565.20x = 161,328.32 × 47,620.56
  4. Step 4: Simplify right side
    107,565.20x = 7,682,544,942.26
  5. Step 5: Solve for x
    x = 7,682,544,942.26/107,565.20
  6. Step 6: Final answer
    x = 71,422.22

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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.