Home / 91,623.92-136,809.23-82,074.62

Finding the Fourth Proportional to 91,623.92, 136,809.23 and 82,074.62

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Solution

The fourth proportional to 91,623.92, 136,809.23 and 82,074.62 is: 122,550.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,623.92 : 136,809.23 = 82,074.62 : x
  2. Step 2: Convert to fraction form
    91,623.92/136,809.23 = 82,074.62/x
  3. Step 3: Cross multiply
    91,623.92x = 136,809.23 × 82,074.62
  4. Step 4: Simplify right side
    91,623.92x = 11,228,565,958.06
  5. Step 5: Solve for x
    x = 11,228,565,958.06/91,623.92
  6. Step 6: Final answer
    x = 122,550.60

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.