Home / 105,645.75-158,474.39-26,760.66

Finding the Fourth Proportional to 105,645.75, 158,474.39 and 26,760.66

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Solution

The fourth proportional to 105,645.75, 158,474.39 and 26,760.66 is: 40,142.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,645.75 : 158,474.39 = 26,760.66 : x
  2. Step 2: Convert to fraction form
    105,645.75/158,474.39 = 26,760.66/x
  3. Step 3: Cross multiply
    105,645.75x = 158,474.39 × 26,760.66
  4. Step 4: Simplify right side
    105,645.75x = 4,240,878,691.94
  5. Step 5: Solve for x
    x = 4,240,878,691.94/105,645.75
  6. Step 6: Final answer
    x = 40,142.45

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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.