Home / 126,286.37-189,465.10-55,215.25

Finding the Fourth Proportional to 126,286.37, 189,465.10 and 55,215.25

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Solution

The fourth proportional to 126,286.37, 189,465.10 and 55,215.25 is: 82,838.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,286.37 : 189,465.10 = 55,215.25 : x
  2. Step 2: Convert to fraction form
    126,286.37/189,465.10 = 55,215.25/x
  3. Step 3: Cross multiply
    126,286.37x = 189,465.10 × 55,215.25
  4. Step 4: Simplify right side
    126,286.37x = 10,461,362,586.70
  5. Step 5: Solve for x
    x = 10,461,362,586.70/126,286.37
  6. Step 6: Final answer
    x = 82,838.41

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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.