Home / 129,439.84-194,159.92-73,996.96

Finding the Fourth Proportional to 129,439.84, 194,159.92 and 73,996.96

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Solution

The fourth proportional to 129,439.84, 194,159.92 and 73,996.96 is: 110,995.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,439.84 : 194,159.92 = 73,996.96 : x
  2. Step 2: Convert to fraction form
    129,439.84/194,159.92 = 73,996.96/x
  3. Step 3: Cross multiply
    129,439.84x = 194,159.92 × 73,996.96
  4. Step 4: Simplify right side
    129,439.84x = 14,367,243,833.84
  5. Step 5: Solve for x
    x = 14,367,243,833.84/129,439.84
  6. Step 6: Final answer
    x = 110,995.53

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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.