Home / 126,568.40-189,852.60-111,806.15

Finding the Fourth Proportional to 126,568.40, 189,852.60 and 111,806.15

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Solution

The fourth proportional to 126,568.40, 189,852.60 and 111,806.15 is: 167,709.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,568.40 : 189,852.60 = 111,806.15 : x
  2. Step 2: Convert to fraction form
    126,568.40/189,852.60 = 111,806.15/x
  3. Step 3: Cross multiply
    126,568.40x = 189,852.60 × 111,806.15
  4. Step 4: Simplify right side
    126,568.40x = 21,226,688,273.49
  5. Step 5: Solve for x
    x = 21,226,688,273.49/126,568.40
  6. Step 6: Final answer
    x = 167,709.23

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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.