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Finding the Fourth Proportional to 132,889.63, 183,408.72 and 79,205.79

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Solution

The fourth proportional to 132,889.63, 183,408.72 and 79,205.79 is: 109,316.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,889.63 : 183,408.72 = 79,205.79 : x
  2. Step 2: Convert to fraction form
    132,889.63/183,408.72 = 79,205.79/x
  3. Step 3: Cross multiply
    132,889.63x = 183,408.72 × 79,205.79
  4. Step 4: Simplify right side
    132,889.63x = 14,527,032,560.49
  5. Step 5: Solve for x
    x = 14,527,032,560.49/132,889.63
  6. Step 6: Final answer
    x = 109,316.53

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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.