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Finding the Fourth Proportional to 129,799.94, 194,699.88 and 54,900.63

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Solution

The fourth proportional to 129,799.94, 194,699.88 and 54,900.63 is: 82,350.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,799.94 : 194,699.88 = 54,900.63 : x
  2. Step 2: Convert to fraction form
    129,799.94/194,699.88 = 54,900.63/x
  3. Step 3: Cross multiply
    129,799.94x = 194,699.88 × 54,900.63
  4. Step 4: Simplify right side
    129,799.94x = 10,689,146,072.92
  5. Step 5: Solve for x
    x = 10,689,146,072.92/129,799.94
  6. Step 6: Final answer
    x = 82,350.94

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1.5x scale

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.