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Finding the Fourth Proportional to 140,625.77, 194,063.88 and 76,967.67

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Solution

The fourth proportional to 140,625.77, 194,063.88 and 76,967.67 is: 106,215.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,625.77 : 194,063.88 = 76,967.67 : x
  2. Step 2: Convert to fraction form
    140,625.77/194,063.88 = 76,967.67/x
  3. Step 3: Cross multiply
    140,625.77x = 194,063.88 × 76,967.67
  4. Step 4: Simplify right side
    140,625.77x = 14,936,644,674.76
  5. Step 5: Solve for x
    x = 14,936,644,674.76/140,625.77
  6. Step 6: Final answer
    x = 106,215.56

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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.