Home / 209,063.52-313,643.88-68,823.36

Finding the Fourth Proportional to 209,063.52, 313,643.88 and 68,823.36

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Solution

The fourth proportional to 209,063.52, 313,643.88 and 68,823.36 is: 103,251.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,063.52 : 313,643.88 = 68,823.36 : x
  2. Step 2: Convert to fraction form
    209,063.52/313,643.88 = 68,823.36/x
  3. Step 3: Cross multiply
    209,063.52x = 313,643.88 × 68,823.36
  4. Step 4: Simplify right side
    209,063.52x = 21,586,025,665.04
  5. Step 5: Solve for x
    x = 21,586,025,665.04/209,063.52
  6. Step 6: Final answer
    x = 103,251.04

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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.