Home / 188,676.11-260,357.27-111,139.44

Finding the Fourth Proportional to 188,676.11, 260,357.27 and 111,139.44

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Solution

The fourth proportional to 188,676.11, 260,357.27 and 111,139.44 is: 153,363.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,676.11 : 260,357.27 = 111,139.44 : x
  2. Step 2: Convert to fraction form
    188,676.11/260,357.27 = 111,139.44/x
  3. Step 3: Cross multiply
    188,676.11x = 260,357.27 × 111,139.44
  4. Step 4: Simplify right side
    188,676.11x = 28,935,961,187.73
  5. Step 5: Solve for x
    x = 28,935,961,187.73/188,676.11
  6. Step 6: Final answer
    x = 153,363.14

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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.