Home / 168,149.50-231,915.02-107,725.72

Finding the Fourth Proportional to 168,149.50, 231,915.02 and 107,725.72

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Solution

The fourth proportional to 168,149.50, 231,915.02 and 107,725.72 is: 148,577.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,149.50 : 231,915.02 = 107,725.72 : x
  2. Step 2: Convert to fraction form
    168,149.50/231,915.02 = 107,725.72/x
  3. Step 3: Cross multiply
    168,149.50x = 231,915.02 × 107,725.72
  4. Step 4: Simplify right side
    168,149.50x = 24,983,212,508.31
  5. Step 5: Solve for x
    x = 24,983,212,508.31/168,149.50
  6. Step 6: Final answer
    x = 148,577.38

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1.5x scale

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.