Home / 209,473.09-313,963.52-96,915.49

Finding the Fourth Proportional to 209,473.09, 313,963.52 and 96,915.49

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Solution

The fourth proportional to 209,473.09, 313,963.52 and 96,915.49 is: 145,259.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,473.09 : 313,963.52 = 96,915.49 : x
  2. Step 2: Convert to fraction form
    209,473.09/313,963.52 = 96,915.49/x
  3. Step 3: Cross multiply
    209,473.09x = 313,963.52 × 96,915.49
  4. Step 4: Simplify right side
    209,473.09x = 30,427,928,382.92
  5. Step 5: Solve for x
    x = 30,427,928,382.92/209,473.09
  6. Step 6: Final answer
    x = 145,259.37

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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.