Home / 129,761.49-194,472.66-66,528.03

Finding the Fourth Proportional to 129,761.49, 194,472.66 and 66,528.03

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Solution

The fourth proportional to 129,761.49, 194,472.66 and 66,528.03 is: 99,705.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,761.49 : 194,472.66 = 66,528.03 : x
  2. Step 2: Convert to fraction form
    129,761.49/194,472.66 = 66,528.03/x
  3. Step 3: Cross multiply
    129,761.49x = 194,472.66 × 66,528.03
  4. Step 4: Simplify right side
    129,761.49x = 12,937,882,958.66
  5. Step 5: Solve for x
    x = 12,937,882,958.66/129,761.49
  6. Step 6: Final answer
    x = 99,705.10

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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.