Home / 189,641.34-261,716.27-109,091.70

Finding the Fourth Proportional to 189,641.34, 261,716.27 and 109,091.70

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Solution

The fourth proportional to 189,641.34, 261,716.27 and 109,091.70 is: 150,553.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,641.34 : 261,716.27 = 109,091.70 : x
  2. Step 2: Convert to fraction form
    189,641.34/261,716.27 = 109,091.70/x
  3. Step 3: Cross multiply
    189,641.34x = 261,716.27 × 109,091.70
  4. Step 4: Simplify right side
    189,641.34x = 28,551,072,811.96
  5. Step 5: Solve for x
    x = 28,551,072,811.96/189,641.34
  6. Step 6: Final answer
    x = 150,553.00

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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.