Home / 217,340.95-325,781.33-73,109.47

Finding the Fourth Proportional to 217,340.95, 325,781.33 and 73,109.47

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Solution

The fourth proportional to 217,340.95, 325,781.33 and 73,109.47 is: 109,586.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,340.95 : 325,781.33 = 73,109.47 : x
  2. Step 2: Convert to fraction form
    217,340.95/325,781.33 = 73,109.47/x
  3. Step 3: Cross multiply
    217,340.95x = 325,781.33 × 73,109.47
  4. Step 4: Simplify right side
    217,340.95x = 23,817,700,962.20
  5. Step 5: Solve for x
    x = 23,817,700,962.20/217,340.95
  6. Step 6: Final answer
    x = 109,586.81

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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.