Home / 149,946.62-206,920.74-81,963.04

Finding the Fourth Proportional to 149,946.62, 206,920.74 and 81,963.04

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Solution

The fourth proportional to 149,946.62, 206,920.74 and 81,963.04 is: 113,105.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,946.62 : 206,920.74 = 81,963.04 : x
  2. Step 2: Convert to fraction form
    149,946.62/206,920.74 = 81,963.04/x
  3. Step 3: Cross multiply
    149,946.62x = 206,920.74 × 81,963.04
  4. Step 4: Simplify right side
    149,946.62x = 16,959,852,889.45
  5. Step 5: Solve for x
    x = 16,959,852,889.45/149,946.62
  6. Step 6: Final answer
    x = 113,105.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.