Home / 126,006.42-189,088.77-51,126.90

Finding the Fourth Proportional to 126,006.42, 189,088.77 and 51,126.90

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Solution

The fourth proportional to 126,006.42, 189,088.77 and 51,126.90 is: 76,722.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,006.42 : 189,088.77 = 51,126.90 : x
  2. Step 2: Convert to fraction form
    126,006.42/189,088.77 = 51,126.90/x
  3. Step 3: Cross multiply
    126,006.42x = 189,088.77 × 51,126.90
  4. Step 4: Simplify right side
    126,006.42x = 9,667,522,634.91
  5. Step 5: Solve for x
    x = 9,667,522,634.91/126,006.42
  6. Step 6: Final answer
    x = 76,722.46

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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.