Home / 106,121.88-146,448.54-58,378.86

Finding the Fourth Proportional to 106,121.88, 146,448.54 and 58,378.86

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Solution

The fourth proportional to 106,121.88, 146,448.54 and 58,378.86 is: 80,563.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,121.88 : 146,448.54 = 58,378.86 : x
  2. Step 2: Convert to fraction form
    106,121.88/146,448.54 = 58,378.86/x
  3. Step 3: Cross multiply
    106,121.88x = 146,448.54 × 58,378.86
  4. Step 4: Simplify right side
    106,121.88x = 8,549,498,813.86
  5. Step 5: Solve for x
    x = 8,549,498,813.86/106,121.88
  6. Step 6: Final answer
    x = 80,563.02

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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.