Home / 129,884.66-194,654.75-66,702.23

Finding the Fourth Proportional to 129,884.66, 194,654.75 and 66,702.23

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Solution

The fourth proportional to 129,884.66, 194,654.75 and 66,702.23 is: 99,964.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,884.66 : 194,654.75 = 66,702.23 : x
  2. Step 2: Convert to fraction form
    129,884.66/194,654.75 = 66,702.23/x
  3. Step 3: Cross multiply
    129,884.66x = 194,654.75 × 66,702.23
  4. Step 4: Simplify right side
    129,884.66x = 12,983,904,598.31
  5. Step 5: Solve for x
    x = 12,983,904,598.31/129,884.66
  6. Step 6: Final answer
    x = 99,964.88

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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.