Home / 131,217.35-181,167.09-100,949.27

Finding the Fourth Proportional to 131,217.35, 181,167.09 and 100,949.27

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Solution

The fourth proportional to 131,217.35, 181,167.09 and 100,949.27 is: 139,377.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,217.35 : 181,167.09 = 100,949.27 : x
  2. Step 2: Convert to fraction form
    131,217.35/181,167.09 = 100,949.27/x
  3. Step 3: Cross multiply
    131,217.35x = 181,167.09 × 100,949.27
  4. Step 4: Simplify right side
    131,217.35x = 18,288,685,483.52
  5. Step 5: Solve for x
    x = 18,288,685,483.52/131,217.35
  6. Step 6: Final answer
    x = 139,377.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.