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Finding the Fourth Proportional to 131,920.66, 182,054.01 and 75,330.82

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Solution

The fourth proportional to 131,920.66, 182,054.01 and 75,330.82 is: 103,958.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,920.66 : 182,054.01 = 75,330.82 : x
  2. Step 2: Convert to fraction form
    131,920.66/182,054.01 = 75,330.82/x
  3. Step 3: Cross multiply
    131,920.66x = 182,054.01 × 75,330.82
  4. Step 4: Simplify right side
    131,920.66x = 13,714,277,857.59
  5. Step 5: Solve for x
    x = 13,714,277,857.59/131,920.66
  6. Step 6: Final answer
    x = 103,958.53

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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.