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Finding the Fourth Proportional to 189,079.31, 260,934.92 and 104,201.84

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Solution

The fourth proportional to 189,079.31, 260,934.92 and 104,201.84 is: 143,801.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,079.31 : 260,934.92 = 104,201.84 : x
  2. Step 2: Convert to fraction form
    189,079.31/260,934.92 = 104,201.84/x
  3. Step 3: Cross multiply
    189,079.31x = 260,934.92 × 104,201.84
  4. Step 4: Simplify right side
    189,079.31x = 27,189,899,306.34
  5. Step 5: Solve for x
    x = 27,189,899,306.34/189,079.31
  6. Step 6: Final answer
    x = 143,801.56

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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.