Home / 231,435.12-347,180.04-81,644.16

Finding the Fourth Proportional to 231,435.12, 347,180.04 and 81,644.16

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Solution

The fourth proportional to 231,435.12, 347,180.04 and 81,644.16 is: 122,475.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,435.12 : 347,180.04 = 81,644.16 : x
  2. Step 2: Convert to fraction form
    231,435.12/347,180.04 = 81,644.16/x
  3. Step 3: Cross multiply
    231,435.12x = 347,180.04 × 81,644.16
  4. Step 4: Simplify right side
    231,435.12x = 28,345,222,734.57
  5. Step 5: Solve for x
    x = 28,345,222,734.57/231,435.12
  6. Step 6: Final answer
    x = 122,475.89

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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.