Home / 105,811.85-146,022.18-58,069.64

Finding the Fourth Proportional to 105,811.85, 146,022.18 and 58,069.64

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Solution

The fourth proportional to 105,811.85, 146,022.18 and 58,069.64 is: 80,137.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,811.85 : 146,022.18 = 58,069.64 : x
  2. Step 2: Convert to fraction form
    105,811.85/146,022.18 = 58,069.64/x
  3. Step 3: Cross multiply
    105,811.85x = 146,022.18 × 58,069.64
  4. Step 4: Simplify right side
    105,811.85x = 8,479,455,571.91
  5. Step 5: Solve for x
    x = 8,479,455,571.91/105,811.85
  6. Step 6: Final answer
    x = 80,137.11

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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.