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Finding the Fourth Proportional to 132,548.83, 182,911.90 and 72,119.71

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Solution

The fourth proportional to 132,548.83, 182,911.90 and 72,119.71 is: 99,522.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,548.83 : 182,911.90 = 72,119.71 : x
  2. Step 2: Convert to fraction form
    132,548.83/182,911.90 = 72,119.71/x
  3. Step 3: Cross multiply
    132,548.83x = 182,911.90 × 72,119.71
  4. Step 4: Simplify right side
    132,548.83x = 13,191,553,183.55
  5. Step 5: Solve for x
    x = 13,191,553,183.55/132,548.83
  6. Step 6: Final answer
    x = 99,522.22

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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.