Home / 129,884.41-194,654.38-66,701.98

Finding the Fourth Proportional to 129,884.41, 194,654.38 and 66,701.98

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Solution

The fourth proportional to 129,884.41, 194,654.38 and 66,701.98 is: 99,964.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,884.41 : 194,654.38 = 66,701.98 : x
  2. Step 2: Convert to fraction form
    129,884.41/194,654.38 = 66,701.98/x
  3. Step 3: Cross multiply
    129,884.41x = 194,654.38 × 66,701.98
  4. Step 4: Simplify right side
    129,884.41x = 12,983,831,254.89
  5. Step 5: Solve for x
    x = 12,983,831,254.89/129,884.41
  6. Step 6: Final answer
    x = 99,964.51

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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.