Home / 126,990.20-190,318.16-70,856.73

Finding the Fourth Proportional to 126,990.20, 190,318.16 and 70,856.73

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Solution

The fourth proportional to 126,990.20, 190,318.16 and 70,856.73 is: 106,191.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,990.20 : 190,318.16 = 70,856.73 : x
  2. Step 2: Convert to fraction form
    126,990.20/190,318.16 = 70,856.73/x
  3. Step 3: Cross multiply
    126,990.20x = 190,318.16 × 70,856.73
  4. Step 4: Simplify right side
    126,990.20x = 13,485,322,122.93
  5. Step 5: Solve for x
    x = 13,485,322,122.93/126,990.20
  6. Step 6: Final answer
    x = 106,191.84

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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.