Home / 120,857.33-166,803.09-100,682.26

Finding the Fourth Proportional to 120,857.33, 166,803.09 and 100,682.26

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Solution

The fourth proportional to 120,857.33, 166,803.09 and 100,682.26 is: 138,958.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,857.33 : 166,803.09 = 100,682.26 : x
  2. Step 2: Convert to fraction form
    120,857.33/166,803.09 = 100,682.26/x
  3. Step 3: Cross multiply
    120,857.33x = 166,803.09 × 100,682.26
  4. Step 4: Simplify right side
    120,857.33x = 16,794,112,076.18
  5. Step 5: Solve for x
    x = 16,794,112,076.18/120,857.33
  6. Step 6: Final answer
    x = 138,958.16

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1.5x scale

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.