Home / 91,649.08-126,171.28-82,201.24

Finding the Fourth Proportional to 91,649.08, 126,171.28 and 82,201.24

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Solution

The fourth proportional to 91,649.08, 126,171.28 and 82,201.24 is: 113,164.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,649.08 : 126,171.28 = 82,201.24 : x
  2. Step 2: Convert to fraction form
    91,649.08/126,171.28 = 82,201.24/x
  3. Step 3: Cross multiply
    91,649.08x = 126,171.28 × 82,201.24
  4. Step 4: Simplify right side
    91,649.08x = 10,371,435,668.39
  5. Step 5: Solve for x
    x = 10,371,435,668.39/91,649.08
  6. Step 6: Final answer
    x = 113,164.65

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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.