Home / 148,741.68-205,262.39-80,757.32

Finding the Fourth Proportional to 148,741.68, 205,262.39 and 80,757.32

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Solution

The fourth proportional to 148,741.68, 205,262.39 and 80,757.32 is: 111,444.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,741.68 : 205,262.39 = 80,757.32 : x
  2. Step 2: Convert to fraction form
    148,741.68/205,262.39 = 80,757.32/x
  3. Step 3: Cross multiply
    148,741.68x = 205,262.39 × 80,757.32
  4. Step 4: Simplify right side
    148,741.68x = 16,576,439,083.10
  5. Step 5: Solve for x
    x = 16,576,439,083.10/148,741.68
  6. Step 6: Final answer
    x = 111,444.48

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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.