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Finding the Fourth Proportional to 136,289.67, 204,347.03 and 89,487.87

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Solution

The fourth proportional to 136,289.67, 204,347.03 and 89,487.87 is: 134,174.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,289.67 : 204,347.03 = 89,487.87 : x
  2. Step 2: Convert to fraction form
    136,289.67/204,347.03 = 89,487.87/x
  3. Step 3: Cross multiply
    136,289.67x = 204,347.03 × 89,487.87
  4. Step 4: Simplify right side
    136,289.67x = 18,286,580,008.09
  5. Step 5: Solve for x
    x = 18,286,580,008.09/136,289.67
  6. Step 6: Final answer
    x = 134,174.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.