Home / 82,126.41-113,231.77-68,533.97

Finding the Fourth Proportional to 82,126.41, 113,231.77 and 68,533.97

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Solution

The fourth proportional to 82,126.41, 113,231.77 and 68,533.97 is: 94,491.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,126.41 : 113,231.77 = 68,533.97 : x
  2. Step 2: Convert to fraction form
    82,126.41/113,231.77 = 68,533.97/x
  3. Step 3: Cross multiply
    82,126.41x = 113,231.77 × 68,533.97
  4. Step 4: Simplify right side
    82,126.41x = 7,760,223,331.63
  5. Step 5: Solve for x
    x = 7,760,223,331.63/82,126.41
  6. Step 6: Final answer
    x = 94,491.21

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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.