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Finding the Fourth Proportional to 133,234.56, 183,861.48 and 72,803.91

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Solution

The fourth proportional to 133,234.56, 183,861.48 and 72,803.91 is: 100,468.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,234.56 : 183,861.48 = 72,803.91 : x
  2. Step 2: Convert to fraction form
    133,234.56/183,861.48 = 72,803.91/x
  3. Step 3: Cross multiply
    133,234.56x = 183,861.48 × 72,803.91
  4. Step 4: Simplify right side
    133,234.56x = 13,385,834,642.39
  5. Step 5: Solve for x
    x = 13,385,834,642.39/133,234.56
  6. Step 6: Final answer
    x = 100,468.19

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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.