Home / 120,407.28-166,164.73-68,723.34

Finding the Fourth Proportional to 120,407.28, 166,164.73 and 68,723.34

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Solution

The fourth proportional to 120,407.28, 166,164.73 and 68,723.34 is: 94,839.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,407.28 : 166,164.73 = 68,723.34 : x
  2. Step 2: Convert to fraction form
    120,407.28/166,164.73 = 68,723.34/x
  3. Step 3: Cross multiply
    120,407.28x = 166,164.73 × 68,723.34
  4. Step 4: Simplify right side
    120,407.28x = 11,419,395,235.80
  5. Step 5: Solve for x
    x = 11,419,395,235.80/120,407.28
  6. Step 6: Final answer
    x = 94,839.74

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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.