Home / 216,532.96-324,791.76-98,121.40

Finding the Fourth Proportional to 216,532.96, 324,791.76 and 98,121.40

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Solution

The fourth proportional to 216,532.96, 324,791.76 and 98,121.40 is: 147,178.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,532.96 : 324,791.76 = 98,121.40 : x
  2. Step 2: Convert to fraction form
    216,532.96/324,791.76 = 98,121.40/x
  3. Step 3: Cross multiply
    216,532.96x = 324,791.76 × 98,121.40
  4. Step 4: Simplify right side
    216,532.96x = 31,869,022,199.66
  5. Step 5: Solve for x
    x = 31,869,022,199.66/216,532.96
  6. Step 6: Final answer
    x = 147,178.62

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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.