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Finding the Fourth Proportional to 133,242.65, 183,877.13 and 79,517.24

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Solution

The fourth proportional to 133,242.65, 183,877.13 and 79,517.24 is: 109,735.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,242.65 : 183,877.13 = 79,517.24 : x
  2. Step 2: Convert to fraction form
    133,242.65/183,877.13 = 79,517.24/x
  3. Step 3: Cross multiply
    133,242.65x = 183,877.13 × 79,517.24
  4. Step 4: Simplify right side
    133,242.65x = 14,621,401,479.14
  5. Step 5: Solve for x
    x = 14,621,401,479.14/133,242.65
  6. Step 6: Final answer
    x = 109,735.14

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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.