Home / 126,727-189,880.60-89,103.27

Finding the Fourth Proportional to 126,727, 189,880.60 and 89,103.27

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Solution

The fourth proportional to 126,727, 189,880.60 and 89,103.27 is: 133,507.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,727 : 189,880.60 = 89,103.27 : x
  2. Step 2: Convert to fraction form
    126,727/189,880.60 = 89,103.27/x
  3. Step 3: Cross multiply
    126,727x = 189,880.60 × 89,103.27
  4. Step 4: Simplify right side
    126,727x = 16,918,982,369.56
  5. Step 5: Solve for x
    x = 16,918,982,369.56/126,727
  6. Step 6: Final answer
    x = 133,507.32

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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.