Home / 136,949.42-188,991.14-76,522.61

Finding the Fourth Proportional to 136,949.42, 188,991.14 and 76,522.61

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Solution

The fourth proportional to 136,949.42, 188,991.14 and 76,522.61 is: 105,601.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,949.42 : 188,991.14 = 76,522.61 : x
  2. Step 2: Convert to fraction form
    136,949.42/188,991.14 = 76,522.61/x
  3. Step 3: Cross multiply
    136,949.42x = 188,991.14 × 76,522.61
  4. Step 4: Simplify right side
    136,949.42x = 14,462,095,299.68
  5. Step 5: Solve for x
    x = 14,462,095,299.68/136,949.42
  6. Step 6: Final answer
    x = 105,601.73

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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.