Home / 100,891.08-139,227.66-63,186.12

Finding the Fourth Proportional to 100,891.08, 139,227.66 and 63,186.12

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Solution

The fourth proportional to 100,891.08, 139,227.66 and 63,186.12 is: 87,195.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,891.08 : 139,227.66 = 63,186.12 : x
  2. Step 2: Convert to fraction form
    100,891.08/139,227.66 = 63,186.12/x
  3. Step 3: Cross multiply
    100,891.08x = 139,227.66 × 63,186.12
  4. Step 4: Simplify right side
    100,891.08x = 8,797,255,632.08
  5. Step 5: Solve for x
    x = 8,797,255,632.08/100,891.08
  6. Step 6: Final answer
    x = 87,195.57

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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.