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Finding the Fourth Proportional to 134,845, 202,299.90 and 51,739

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Solution

The fourth proportional to 134,845, 202,299.90 and 51,739 is: 77,620.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,845 : 202,299.90 = 51,739 : x
  2. Step 2: Convert to fraction form
    134,845/202,299.90 = 51,739/x
  3. Step 3: Cross multiply
    134,845x = 202,299.90 × 51,739
  4. Step 4: Simplify right side
    134,845x = 10,466,794,526.10
  5. Step 5: Solve for x
    x = 10,466,794,526.10/134,845
  6. Step 6: Final answer
    x = 77,620.93

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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.