Home / 105,370.38-158,055.39-49,191.66

Finding the Fourth Proportional to 105,370.38, 158,055.39 and 49,191.66

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Solution

The fourth proportional to 105,370.38, 158,055.39 and 49,191.66 is: 73,787.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,370.38 : 158,055.39 = 49,191.66 : x
  2. Step 2: Convert to fraction form
    105,370.38/158,055.39 = 49,191.66/x
  3. Step 3: Cross multiply
    105,370.38x = 158,055.39 × 49,191.66
  4. Step 4: Simplify right side
    105,370.38x = 7,775,007,006.05
  5. Step 5: Solve for x
    x = 7,775,007,006.05/105,370.38
  6. Step 6: Final answer
    x = 73,787.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.