Home / 189,803.20-261,928.32-104,920.24

Finding the Fourth Proportional to 189,803.20, 261,928.32 and 104,920.24

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Solution

The fourth proportional to 189,803.20, 261,928.32 and 104,920.24 is: 144,789.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,803.20 : 261,928.32 = 104,920.24 : x
  2. Step 2: Convert to fraction form
    189,803.20/261,928.32 = 104,920.24/x
  3. Step 3: Cross multiply
    189,803.20x = 261,928.32 × 104,920.24
  4. Step 4: Simplify right side
    189,803.20x = 27,481,582,197.20
  5. Step 5: Solve for x
    x = 27,481,582,197.20/189,803.20
  6. Step 6: Final answer
    x = 144,789.88

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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.