Home / 189,512.38-261,520.32-114,046.30

Finding the Fourth Proportional to 189,512.38, 261,520.32 and 114,046.30

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Solution

The fourth proportional to 189,512.38, 261,520.32 and 114,046.30 is: 157,379.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,512.38 : 261,520.32 = 114,046.30 : x
  2. Step 2: Convert to fraction form
    189,512.38/261,520.32 = 114,046.30/x
  3. Step 3: Cross multiply
    189,512.38x = 261,520.32 × 114,046.30
  4. Step 4: Simplify right side
    189,512.38x = 29,825,424,870.82
  5. Step 5: Solve for x
    x = 29,825,424,870.82/189,512.38
  6. Step 6: Final answer
    x = 157,379.82

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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.