Home / 209,171.67-312,982.34-124,977.65

Finding the Fourth Proportional to 209,171.67, 312,982.34 and 124,977.65

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Solution

The fourth proportional to 209,171.67, 312,982.34 and 124,977.65 is: 187,003.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,171.67 : 312,982.34 = 124,977.65 : x
  2. Step 2: Convert to fraction form
    209,171.67/312,982.34 = 124,977.65/x
  3. Step 3: Cross multiply
    209,171.67x = 312,982.34 × 124,977.65
  4. Step 4: Simplify right side
    209,171.67x = 39,115,795,154.90
  5. Step 5: Solve for x
    x = 39,115,795,154.90/209,171.67
  6. Step 6: Final answer
    x = 187,003.31

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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.