Home / 126,331.36-189,430.40-111,942.12

Finding the Fourth Proportional to 126,331.36, 189,430.40 and 111,942.12

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Solution

The fourth proportional to 126,331.36, 189,430.40 and 111,942.12 is: 167,854.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,331.36 : 189,430.40 = 111,942.12 : x
  2. Step 2: Convert to fraction form
    126,331.36/189,430.40 = 111,942.12/x
  3. Step 3: Cross multiply
    126,331.36x = 189,430.40 × 111,942.12
  4. Step 4: Simplify right side
    126,331.36x = 21,205,240,568.45
  5. Step 5: Solve for x
    x = 21,205,240,568.45/126,331.36
  6. Step 6: Final answer
    x = 167,854.13

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1.5x scale

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.