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Finding the Fourth Proportional to 133,521.77, 200,392.07 and 54,636.68

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Solution

The fourth proportional to 133,521.77, 200,392.07 and 54,636.68 is: 81,999.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,521.77 : 200,392.07 = 54,636.68 : x
  2. Step 2: Convert to fraction form
    133,521.77/200,392.07 = 54,636.68/x
  3. Step 3: Cross multiply
    133,521.77x = 200,392.07 × 54,636.68
  4. Step 4: Simplify right side
    133,521.77x = 10,948,756,127.98
  5. Step 5: Solve for x
    x = 10,948,756,127.98/133,521.77
  6. Step 6: Final answer
    x = 81,999.79

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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.