Home / 147,701.38-203,826.86-80,633.38

Finding the Fourth Proportional to 147,701.38, 203,826.86 and 80,633.38

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Solution

The fourth proportional to 147,701.38, 203,826.86 and 80,633.38 is: 111,273.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,701.38 : 203,826.86 = 80,633.38 : x
  2. Step 2: Convert to fraction form
    147,701.38/203,826.86 = 80,633.38/x
  3. Step 3: Cross multiply
    147,701.38x = 203,826.86 × 80,633.38
  4. Step 4: Simplify right side
    147,701.38x = 16,435,248,046.23
  5. Step 5: Solve for x
    x = 16,435,248,046.23/147,701.38
  6. Step 6: Final answer
    x = 111,273.49

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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.