Home / 168,154.50-231,921.93-107,730.73

Finding the Fourth Proportional to 168,154.50, 231,921.93 and 107,730.73

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Solution

The fourth proportional to 168,154.50, 231,921.93 and 107,730.73 is: 148,584.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,154.50 : 231,921.93 = 107,730.73 : x
  2. Step 2: Convert to fraction form
    168,154.50/231,921.93 = 107,730.73/x
  3. Step 3: Cross multiply
    168,154.50x = 231,921.93 × 107,730.73
  4. Step 4: Simplify right side
    168,154.50x = 24,985,118,821.91
  5. Step 5: Solve for x
    x = 24,985,118,821.91/168,154.50
  6. Step 6: Final answer
    x = 148,584.30

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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.