Home / 166,105.61-229,222.55-90,654.65

Finding the Fourth Proportional to 166,105.61, 229,222.55 and 90,654.65

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Solution

The fourth proportional to 166,105.61, 229,222.55 and 90,654.65 is: 125,101.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,105.61 : 229,222.55 = 90,654.65 : x
  2. Step 2: Convert to fraction form
    166,105.61/229,222.55 = 90,654.65/x
  3. Step 3: Cross multiply
    166,105.61x = 229,222.55 × 90,654.65
  4. Step 4: Simplify right side
    166,105.61x = 20,780,089,589.08
  5. Step 5: Solve for x
    x = 20,780,089,589.08/166,105.61
  6. Step 6: Final answer
    x = 125,101.67

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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.