Home / 168,154.80-231,922.40-107,731.06

Finding the Fourth Proportional to 168,154.80, 231,922.40 and 107,731.06

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Solution

The fourth proportional to 168,154.80, 231,922.40 and 107,731.06 is: 148,584.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,154.80 : 231,922.40 = 107,731.06 : x
  2. Step 2: Convert to fraction form
    168,154.80/231,922.40 = 107,731.06/x
  3. Step 3: Cross multiply
    168,154.80x = 231,922.40 × 107,731.06
  4. Step 4: Simplify right side
    168,154.80x = 24,985,245,989.74
  5. Step 5: Solve for x
    x = 24,985,245,989.74/168,154.80
  6. Step 6: Final answer
    x = 148,584.79

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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.