Home / 166,987.85-230,358.53-105,630.66

Finding the Fourth Proportional to 166,987.85, 230,358.53 and 105,630.66

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Solution

The fourth proportional to 166,987.85, 230,358.53 and 105,630.66 is: 145,716.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,987.85 : 230,358.53 = 105,630.66 : x
  2. Step 2: Convert to fraction form
    166,987.85/230,358.53 = 105,630.66/x
  3. Step 3: Cross multiply
    166,987.85x = 230,358.53 × 105,630.66
  4. Step 4: Simplify right side
    166,987.85x = 24,332,923,176.72
  5. Step 5: Solve for x
    x = 24,332,923,176.72/166,987.85
  6. Step 6: Final answer
    x = 145,716.73

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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.