Home / 208,963.30-313,498-96,724.48

Finding the Fourth Proportional to 208,963.30, 313,498 and 96,724.48

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Solution

The fourth proportional to 208,963.30, 313,498 and 96,724.48 is: 145,111.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,963.30 : 313,498 = 96,724.48 : x
  2. Step 2: Convert to fraction form
    208,963.30/313,498 = 96,724.48/x
  3. Step 3: Cross multiply
    208,963.30x = 313,498 × 96,724.48
  4. Step 4: Simplify right side
    208,963.30x = 30,322,931,031.04
  5. Step 5: Solve for x
    x = 30,322,931,031.04/208,963.30
  6. Step 6: Final answer
    x = 145,111.28

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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.