Home / 217,742.26-326,610.49-105,432.52

Finding the Fourth Proportional to 217,742.26, 326,610.49 and 105,432.52

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Solution

The fourth proportional to 217,742.26, 326,610.49 and 105,432.52 is: 158,147.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,742.26 : 326,610.49 = 105,432.52 : x
  2. Step 2: Convert to fraction form
    217,742.26/326,610.49 = 105,432.52/x
  3. Step 3: Cross multiply
    217,742.26x = 326,610.49 × 105,432.52
  4. Step 4: Simplify right side
    217,742.26x = 34,435,367,019.13
  5. Step 5: Solve for x
    x = 34,435,367,019.13/217,742.26
  6. Step 6: Final answer
    x = 158,147.38

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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.