Home / 133,738.59-200,921.34-126,172.77

Finding the Fourth Proportional to 133,738.59, 200,921.34 and 126,172.77

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Solution

The fourth proportional to 133,738.59, 200,921.34 and 126,172.77 is: 189,554.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,738.59 : 200,921.34 = 126,172.77 : x
  2. Step 2: Convert to fraction form
    133,738.59/200,921.34 = 126,172.77/x
  3. Step 3: Cross multiply
    133,738.59x = 200,921.34 × 126,172.77
  4. Step 4: Simplify right side
    133,738.59x = 25,350,802,019.91
  5. Step 5: Solve for x
    x = 25,350,802,019.91/133,738.59
  6. Step 6: Final answer
    x = 189,554.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.