Home / 126,507.17-189,760.78-51,662.56

Finding the Fourth Proportional to 126,507.17, 189,760.78 and 51,662.56

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Solution

The fourth proportional to 126,507.17, 189,760.78 and 51,662.56 is: 77,493.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,507.17 : 189,760.78 = 51,662.56 : x
  2. Step 2: Convert to fraction form
    126,507.17/189,760.78 = 51,662.56/x
  3. Step 3: Cross multiply
    126,507.17x = 189,760.78 × 51,662.56
  4. Step 4: Simplify right side
    126,507.17x = 9,803,527,337.77
  5. Step 5: Solve for x
    x = 9,803,527,337.77/126,507.17
  6. Step 6: Final answer
    x = 77,493.85

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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.