Home / 126,005.69-189,087.66-51,126.14

Finding the Fourth Proportional to 126,005.69, 189,087.66 and 51,126.14

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Solution

The fourth proportional to 126,005.69, 189,087.66 and 51,126.14 is: 76,721.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,005.69 : 189,087.66 = 51,126.14 : x
  2. Step 2: Convert to fraction form
    126,005.69/189,087.66 = 51,126.14/x
  3. Step 3: Cross multiply
    126,005.69x = 189,087.66 × 51,126.14
  4. Step 4: Simplify right side
    126,005.69x = 9,667,322,650.15
  5. Step 5: Solve for x
    x = 9,667,322,650.15/126,005.69
  6. Step 6: Final answer
    x = 76,721.32

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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.