Home / 158,770.25-219,105.44-87,156.80

Finding the Fourth Proportional to 158,770.25, 219,105.44 and 87,156.80

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Solution

The fourth proportional to 158,770.25, 219,105.44 and 87,156.80 is: 120,277.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,770.25 : 219,105.44 = 87,156.80 : x
  2. Step 2: Convert to fraction form
    158,770.25/219,105.44 = 87,156.80/x
  3. Step 3: Cross multiply
    158,770.25x = 219,105.44 × 87,156.80
  4. Step 4: Simplify right side
    158,770.25x = 19,096,527,481.68
  5. Step 5: Solve for x
    x = 19,096,527,481.68/158,770.25
  6. Step 6: Final answer
    x = 120,277.75

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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.