Home / 209,348.13-313,880.06-106,512.72

Finding the Fourth Proportional to 209,348.13, 313,880.06 and 106,512.72

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Solution

The fourth proportional to 209,348.13, 313,880.06 and 106,512.72 is: 159,696.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,348.13 : 313,880.06 = 106,512.72 : x
  2. Step 2: Convert to fraction form
    209,348.13/313,880.06 = 106,512.72/x
  3. Step 3: Cross multiply
    209,348.13x = 313,880.06 × 106,512.72
  4. Step 4: Simplify right side
    209,348.13x = 33,432,218,411.80
  5. Step 5: Solve for x
    x = 33,432,218,411.80/209,348.13
  6. Step 6: Final answer
    x = 159,696.76

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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.