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Finding the Fourth Proportional to 129,375.88, 194,063.81 and 35,881.63

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Solution

The fourth proportional to 129,375.88, 194,063.81 and 35,881.63 is: 53,822.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,375.88 : 194,063.81 = 35,881.63 : x
  2. Step 2: Convert to fraction form
    129,375.88/194,063.81 = 35,881.63/x
  3. Step 3: Cross multiply
    129,375.88x = 194,063.81 × 35,881.63
  4. Step 4: Simplify right side
    129,375.88x = 6,963,325,826.81
  5. Step 5: Solve for x
    x = 6,963,325,826.81/129,375.88
  6. Step 6: Final answer
    x = 53,822.44

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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.