Home / 136,099.13-187,816.79-76,483.13

Finding the Fourth Proportional to 136,099.13, 187,816.79 and 76,483.13

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Solution

The fourth proportional to 136,099.13, 187,816.79 and 76,483.13 is: 105,546.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,099.13 : 187,816.79 = 76,483.13 : x
  2. Step 2: Convert to fraction form
    136,099.13/187,816.79 = 76,483.13/x
  3. Step 3: Cross multiply
    136,099.13x = 187,816.79 × 76,483.13
  4. Step 4: Simplify right side
    136,099.13x = 14,364,815,217.88
  5. Step 5: Solve for x
    x = 14,364,815,217.88/136,099.13
  6. Step 6: Final answer
    x = 105,546.71

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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.