Home / 203,182.36-280,388.56-111,300.90

Finding the Fourth Proportional to 203,182.36, 280,388.56 and 111,300.90

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Solution

The fourth proportional to 203,182.36, 280,388.56 and 111,300.90 is: 153,593.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,182.36 : 280,388.56 = 111,300.90 : x
  2. Step 2: Convert to fraction form
    203,182.36/280,388.56 = 111,300.90/x
  3. Step 3: Cross multiply
    203,182.36x = 280,388.56 × 111,300.90
  4. Step 4: Simplify right side
    203,182.36x = 31,207,499,077.70
  5. Step 5: Solve for x
    x = 31,207,499,077.70/203,182.36
  6. Step 6: Final answer
    x = 153,593.55

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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.