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Finding the Fourth Proportional to 137,375.33, 189,572.33 and 76,945.01

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Solution

The fourth proportional to 137,375.33, 189,572.33 and 76,945.01 is: 106,180.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,375.33 : 189,572.33 = 76,945.01 : x
  2. Step 2: Convert to fraction form
    137,375.33/189,572.33 = 76,945.01/x
  3. Step 3: Cross multiply
    137,375.33x = 189,572.33 × 76,945.01
  4. Step 4: Simplify right side
    137,375.33x = 14,586,644,072.07
  5. Step 5: Solve for x
    x = 14,586,644,072.07/137,375.33
  6. Step 6: Final answer
    x = 106,180.96

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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.