Home / 151,991.45-209,766-126,452.76

Finding the Fourth Proportional to 151,991.45, 209,766 and 126,452.76

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Solution

The fourth proportional to 151,991.45, 209,766 and 126,452.76 is: 174,519.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,991.45 : 209,766 = 126,452.76 : x
  2. Step 2: Convert to fraction form
    151,991.45/209,766 = 126,452.76/x
  3. Step 3: Cross multiply
    151,991.45x = 209,766 × 126,452.76
  4. Step 4: Simplify right side
    151,991.45x = 26,525,489,654.16
  5. Step 5: Solve for x
    x = 26,525,489,654.16/151,991.45
  6. Step 6: Final answer
    x = 174,519.62

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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.