Home / 265,517.35-398,189.89-87,976.69

Finding the Fourth Proportional to 265,517.35, 398,189.89 and 87,976.69

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Solution

The fourth proportional to 265,517.35, 398,189.89 and 87,976.69 is: 131,936.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,517.35 : 398,189.89 = 87,976.69 : x
  2. Step 2: Convert to fraction form
    265,517.35/398,189.89 = 87,976.69/x
  3. Step 3: Cross multiply
    265,517.35x = 398,189.89 × 87,976.69
  4. Step 4: Simplify right side
    265,517.35x = 35,031,427,628.16
  5. Step 5: Solve for x
    x = 35,031,427,628.16/265,517.35
  6. Step 6: Final answer
    x = 131,936.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.