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Finding the Fourth Proportional to 131,696.11, 181,741.11 and 71,266.74

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Solution

The fourth proportional to 131,696.11, 181,741.11 and 71,266.74 is: 98,348.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,696.11 : 181,741.11 = 71,266.74 : x
  2. Step 2: Convert to fraction form
    131,696.11/181,741.11 = 71,266.74/x
  3. Step 3: Cross multiply
    131,696.11x = 181,741.11 × 71,266.74
  4. Step 4: Simplify right side
    131,696.11x = 12,952,096,433.68
  5. Step 5: Solve for x
    x = 12,952,096,433.68/131,696.11
  6. Step 6: Final answer
    x = 98,348.36

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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.