Home / 129,918.66-194,803.56-39,937.98

Finding the Fourth Proportional to 129,918.66, 194,803.56 and 39,937.98

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Solution

The fourth proportional to 129,918.66, 194,803.56 and 39,937.98 is: 59,884.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,918.66 : 194,803.56 = 39,937.98 : x
  2. Step 2: Convert to fraction form
    129,918.66/194,803.56 = 39,937.98/x
  3. Step 3: Cross multiply
    129,918.66x = 194,803.56 × 39,937.98
  4. Step 4: Simplify right side
    129,918.66x = 7,780,060,683.21
  5. Step 5: Solve for x
    x = 7,780,060,683.21/129,918.66
  6. Step 6: Final answer
    x = 59,884.09

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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.