Home / 189,197.06-261,091.23-104,318.78

Finding the Fourth Proportional to 189,197.06, 261,091.23 and 104,318.78

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Solution

The fourth proportional to 189,197.06, 261,091.23 and 104,318.78 is: 143,959.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,197.06 : 261,091.23 = 104,318.78 : x
  2. Step 2: Convert to fraction form
    189,197.06/261,091.23 = 104,318.78/x
  3. Step 3: Cross multiply
    189,197.06x = 261,091.23 × 104,318.78
  4. Step 4: Simplify right side
    189,197.06x = 27,236,718,582.30
  5. Step 5: Solve for x
    x = 27,236,718,582.30/189,197.06
  6. Step 6: Final answer
    x = 143,959.52

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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.