Home / 168,056.57-231,915.96-91,579.01

Finding the Fourth Proportional to 168,056.57, 231,915.96 and 91,579.01

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Solution

The fourth proportional to 168,056.57, 231,915.96 and 91,579.01 is: 126,377.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,056.57 : 231,915.96 = 91,579.01 : x
  2. Step 2: Convert to fraction form
    168,056.57/231,915.96 = 91,579.01/x
  3. Step 3: Cross multiply
    168,056.57x = 231,915.96 × 91,579.01
  4. Step 4: Simplify right side
    168,056.57x = 21,238,632,860.42
  5. Step 5: Solve for x
    x = 21,238,632,860.42/168,056.57
  6. Step 6: Final answer
    x = 126,377.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.