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Finding the Fourth Proportional to 137,081.66, 205,601.22 and 52,881.28

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Solution

The fourth proportional to 137,081.66, 205,601.22 and 52,881.28 is: 79,313.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,081.66 : 205,601.22 = 52,881.28 : x
  2. Step 2: Convert to fraction form
    137,081.66/205,601.22 = 52,881.28/x
  3. Step 3: Cross multiply
    137,081.66x = 205,601.22 × 52,881.28
  4. Step 4: Simplify right side
    137,081.66x = 10,872,455,169.16
  5. Step 5: Solve for x
    x = 10,872,455,169.16/137,081.66
  6. Step 6: Final answer
    x = 79,313.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.