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Finding the Fourth Proportional to 129,599.64, 194,362.20 and 54,736.74

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Solution

The fourth proportional to 129,599.64, 194,362.20 and 54,736.74 is: 82,089.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,599.64 : 194,362.20 = 54,736.74 : x
  2. Step 2: Convert to fraction form
    129,599.64/194,362.20 = 54,736.74/x
  3. Step 3: Cross multiply
    129,599.64x = 194,362.20 × 54,736.74
  4. Step 4: Simplify right side
    129,599.64x = 10,638,753,207.23
  5. Step 5: Solve for x
    x = 10,638,753,207.23/129,599.64
  6. Step 6: Final answer
    x = 82,089.37

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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.