Home / 126,137.78-189,229.98-36,176.72

Finding the Fourth Proportional to 126,137.78, 189,229.98 and 36,176.72

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Solution

The fourth proportional to 126,137.78, 189,229.98 and 36,176.72 is: 54,271.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,137.78 : 189,229.98 = 36,176.72 : x
  2. Step 2: Convert to fraction form
    126,137.78/189,229.98 = 36,176.72/x
  3. Step 3: Cross multiply
    126,137.78x = 189,229.98 × 36,176.72
  4. Step 4: Simplify right side
    126,137.78x = 6,845,720,002.07
  5. Step 5: Solve for x
    x = 6,845,720,002.07/126,137.78
  6. Step 6: Final answer
    x = 54,271.77

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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.