Home / 106,425.78-146,714.99-83,725.35

Finding the Fourth Proportional to 106,425.78, 146,714.99 and 83,725.35

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Solution

The fourth proportional to 106,425.78, 146,714.99 and 83,725.35 is: 115,420.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,425.78 : 146,714.99 = 83,725.35 : x
  2. Step 2: Convert to fraction form
    106,425.78/146,714.99 = 83,725.35/x
  3. Step 3: Cross multiply
    106,425.78x = 146,714.99 × 83,725.35
  4. Step 4: Simplify right side
    106,425.78x = 12,283,763,469.37
  5. Step 5: Solve for x
    x = 12,283,763,469.37/106,425.78
  6. Step 6: Final answer
    x = 115,420.94

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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.