Home / 165,018.80-247,488.56-76,187

Finding the Fourth Proportional to 165,018.80, 247,488.56 and 76,187

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Solution

The fourth proportional to 165,018.80, 247,488.56 and 76,187 is: 114,262.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,018.80 : 247,488.56 = 76,187 : x
  2. Step 2: Convert to fraction form
    165,018.80/247,488.56 = 76,187/x
  3. Step 3: Cross multiply
    165,018.80x = 247,488.56 × 76,187
  4. Step 4: Simplify right side
    165,018.80x = 18,855,410,920.72
  5. Step 5: Solve for x
    x = 18,855,410,920.72/165,018.80
  6. Step 6: Final answer
    x = 114,262.20

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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.