Home / 209,246.45-313,910.08-89,301.65

Finding the Fourth Proportional to 209,246.45, 313,910.08 and 89,301.65

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Solution

The fourth proportional to 209,246.45, 313,910.08 and 89,301.65 is: 133,969.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,246.45 : 313,910.08 = 89,301.65 : x
  2. Step 2: Convert to fraction form
    209,246.45/313,910.08 = 89,301.65/x
  3. Step 3: Cross multiply
    209,246.45x = 313,910.08 × 89,301.65
  4. Step 4: Simplify right side
    209,246.45x = 28,032,686,302.83
  5. Step 5: Solve for x
    x = 28,032,686,302.83/209,246.45
  6. Step 6: Final answer
    x = 133,969.71

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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.