Home / 129,436.32-194,186.82-102,882.49

Finding the Fourth Proportional to 129,436.32, 194,186.82 and 102,882.49

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Solution

The fourth proportional to 129,436.32, 194,186.82 and 102,882.49 is: 154,349.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,436.32 : 194,186.82 = 102,882.49 : x
  2. Step 2: Convert to fraction form
    129,436.32/194,186.82 = 102,882.49/x
  3. Step 3: Cross multiply
    129,436.32x = 194,186.82 × 102,882.49
  4. Step 4: Simplify right side
    129,436.32x = 19,978,423,566.78
  5. Step 5: Solve for x
    x = 19,978,423,566.78/129,436.32
  6. Step 6: Final answer
    x = 154,349.44

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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.