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Finding the Fourth Proportional to 133,313.91, 183,976.11 and 79,588.89

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Solution

The fourth proportional to 133,313.91, 183,976.11 and 79,588.89 is: 109,834.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,313.91 : 183,976.11 = 79,588.89 : x
  2. Step 2: Convert to fraction form
    133,313.91/183,976.11 = 79,588.89/x
  3. Step 3: Cross multiply
    133,313.91x = 183,976.11 × 79,588.89
  4. Step 4: Simplify right side
    133,313.91x = 14,642,454,381.42
  5. Step 5: Solve for x
    x = 14,642,454,381.42/133,313.91
  6. Step 6: Final answer
    x = 109,834.41

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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.