Home / 105,919.12-146,171.04-58,176.96

Finding the Fourth Proportional to 105,919.12, 146,171.04 and 58,176.96

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Solution

The fourth proportional to 105,919.12, 146,171.04 and 58,176.96 is: 80,285.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,919.12 : 146,171.04 = 58,176.96 : x
  2. Step 2: Convert to fraction form
    105,919.12/146,171.04 = 58,176.96/x
  3. Step 3: Cross multiply
    105,919.12x = 146,171.04 × 58,176.96
  4. Step 4: Simplify right side
    105,919.12x = 8,503,786,747.24
  5. Step 5: Solve for x
    x = 8,503,786,747.24/105,919.12
  6. Step 6: Final answer
    x = 80,285.66

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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.