Home / 231,720.75-347,583.25-91,479.38

Finding the Fourth Proportional to 231,720.75, 347,583.25 and 91,479.38

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Solution

The fourth proportional to 231,720.75, 347,583.25 and 91,479.38 is: 137,219.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,720.75 : 347,583.25 = 91,479.38 : x
  2. Step 2: Convert to fraction form
    231,720.75/347,583.25 = 91,479.38/x
  3. Step 3: Cross multiply
    231,720.75x = 347,583.25 × 91,479.38
  4. Step 4: Simplify right side
    231,720.75x = 31,796,698,584.82
  5. Step 5: Solve for x
    x = 31,796,698,584.82/231,720.75
  6. Step 6: Final answer
    x = 137,219.90

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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.