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Finding the Fourth Proportional to 132,676, 183,090.26 and 72,247.38

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Solution

The fourth proportional to 132,676, 183,090.26 and 72,247.38 is: 99,699.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,676 : 183,090.26 = 72,247.38 : x
  2. Step 2: Convert to fraction form
    132,676/183,090.26 = 72,247.38/x
  3. Step 3: Cross multiply
    132,676x = 183,090.26 × 72,247.38
  4. Step 4: Simplify right side
    132,676x = 13,227,791,588.52
  5. Step 5: Solve for x
    x = 13,227,791,588.52/132,676
  6. Step 6: Final answer
    x = 99,699.96

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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.