Home / 217,712.61-326,544.21-75,531.69

Finding the Fourth Proportional to 217,712.61, 326,544.21 and 75,531.69

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Solution

The fourth proportional to 217,712.61, 326,544.21 and 75,531.69 is: 113,288.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,712.61 : 326,544.21 = 75,531.69 : x
  2. Step 2: Convert to fraction form
    217,712.61/326,544.21 = 75,531.69/x
  3. Step 3: Cross multiply
    217,712.61x = 326,544.21 × 75,531.69
  4. Step 4: Simplify right side
    217,712.61x = 24,664,436,041.01
  5. Step 5: Solve for x
    x = 24,664,436,041.01/217,712.61
  6. Step 6: Final answer
    x = 113,288.96

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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.