Home / 133,635.21-200,412.91-72,836

Finding the Fourth Proportional to 133,635.21, 200,412.91 and 72,836

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Solution

The fourth proportional to 133,635.21, 200,412.91 and 72,836 is: 109,232.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,635.21 : 200,412.91 = 72,836 : x
  2. Step 2: Convert to fraction form
    133,635.21/200,412.91 = 72,836/x
  3. Step 3: Cross multiply
    133,635.21x = 200,412.91 × 72,836
  4. Step 4: Simplify right side
    133,635.21x = 14,597,274,712.76
  5. Step 5: Solve for x
    x = 14,597,274,712.76/133,635.21
  6. Step 6: Final answer
    x = 109,232.25

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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.