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Finding the Fourth Proportional to 133,718.90, 184,504.82 and 79,247.07

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Solution

The fourth proportional to 133,718.90, 184,504.82 and 79,247.07 is: 109,344.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,718.90 : 184,504.82 = 79,247.07 : x
  2. Step 2: Convert to fraction form
    133,718.90/184,504.82 = 79,247.07/x
  3. Step 3: Cross multiply
    133,718.90x = 184,504.82 × 79,247.07
  4. Step 4: Simplify right side
    133,718.90x = 14,621,465,989.64
  5. Step 5: Solve for x
    x = 14,621,465,989.64/133,718.90
  6. Step 6: Final answer
    x = 109,344.80

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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.