Home / 126,007.20-189,089.91-51,127.65

Finding the Fourth Proportional to 126,007.20, 189,089.91 and 51,127.65

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Solution

The fourth proportional to 126,007.20, 189,089.91 and 51,127.65 is: 76,723.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,007.20 : 189,089.91 = 51,127.65 : x
  2. Step 2: Convert to fraction form
    126,007.20/189,089.91 = 51,127.65/x
  3. Step 3: Cross multiply
    126,007.20x = 189,089.91 × 51,127.65
  4. Step 4: Simplify right side
    126,007.20x = 9,667,722,737.01
  5. Step 5: Solve for x
    x = 9,667,722,737.01/126,007.20
  6. Step 6: Final answer
    x = 76,723.57

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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.