Home / 126,499.32-189,527.45-112,770.36

Finding the Fourth Proportional to 126,499.32, 189,527.45 and 112,770.36

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Solution

The fourth proportional to 126,499.32, 189,527.45 and 112,770.36 is: 168,958.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,499.32 : 189,527.45 = 112,770.36 : x
  2. Step 2: Convert to fraction form
    126,499.32/189,527.45 = 112,770.36/x
  3. Step 3: Cross multiply
    126,499.32x = 189,527.45 × 112,770.36
  4. Step 4: Simplify right side
    126,499.32x = 21,373,078,202.53
  5. Step 5: Solve for x
    x = 21,373,078,202.53/126,499.32
  6. Step 6: Final answer
    x = 168,958.05

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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.