Home / 129,455.40-194,183.10-76,092.60

Finding the Fourth Proportional to 129,455.40, 194,183.10 and 76,092.60

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Solution

The fourth proportional to 129,455.40, 194,183.10 and 76,092.60 is: 114,138.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,455.40 : 194,183.10 = 76,092.60 : x
  2. Step 2: Convert to fraction form
    129,455.40/194,183.10 = 76,092.60/x
  3. Step 3: Cross multiply
    129,455.40x = 194,183.10 × 76,092.60
  4. Step 4: Simplify right side
    129,455.40x = 14,775,896,955.06
  5. Step 5: Solve for x
    x = 14,775,896,955.06/129,455.40
  6. Step 6: Final answer
    x = 114,138.90

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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.