Home / 106,135.20-158,857.20-82,634.40

Finding the Fourth Proportional to 106,135.20, 158,857.20 and 82,634.40

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Solution

The fourth proportional to 106,135.20, 158,857.20 and 82,634.40 is: 123,682.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,135.20 : 158,857.20 = 82,634.40 : x
  2. Step 2: Convert to fraction form
    106,135.20/158,857.20 = 82,634.40/x
  3. Step 3: Cross multiply
    106,135.20x = 158,857.20 × 82,634.40
  4. Step 4: Simplify right side
    106,135.20x = 13,127,069,407.68
  5. Step 5: Solve for x
    x = 13,127,069,407.68/106,135.20
  6. Step 6: Final answer
    x = 123,682.52

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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.