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Finding the Fourth Proportional to 133,241.92, 183,846.72 and 79,509.76

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Solution

The fourth proportional to 133,241.92, 183,846.72 and 79,509.76 is: 109,707.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,241.92 : 183,846.72 = 79,509.76 : x
  2. Step 2: Convert to fraction form
    133,241.92/183,846.72 = 79,509.76/x
  3. Step 3: Cross multiply
    133,241.92x = 183,846.72 × 79,509.76
  4. Step 4: Simplify right side
    133,241.92x = 14,617,608,583.99
  5. Step 5: Solve for x
    x = 14,617,608,583.99/133,241.92
  6. Step 6: Final answer
    x = 109,707.28

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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.