Home / 166,074.58-229,180.77-90,621.78

Finding the Fourth Proportional to 166,074.58, 229,180.77 and 90,621.78

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Solution

The fourth proportional to 166,074.58, 229,180.77 and 90,621.78 is: 125,056.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,074.58 : 229,180.77 = 90,621.78 : x
  2. Step 2: Convert to fraction form
    166,074.58/229,180.77 = 90,621.78/x
  3. Step 3: Cross multiply
    166,074.58x = 229,180.77 × 90,621.78
  4. Step 4: Simplify right side
    166,074.58x = 20,768,769,319.17
  5. Step 5: Solve for x
    x = 20,768,769,319.17/166,074.58
  6. Step 6: Final answer
    x = 125,056.88

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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.