Home / 129,431.85-194,118.51-50,505.45

Finding the Fourth Proportional to 129,431.85, 194,118.51 and 50,505.45

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Solution

The fourth proportional to 129,431.85, 194,118.51 and 50,505.45 is: 75,746.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,431.85 : 194,118.51 = 50,505.45 : x
  2. Step 2: Convert to fraction form
    129,431.85/194,118.51 = 50,505.45/x
  3. Step 3: Cross multiply
    129,431.85x = 194,118.51 × 50,505.45
  4. Step 4: Simplify right side
    129,431.85x = 9,804,042,700.88
  5. Step 5: Solve for x
    x = 9,804,042,700.88/129,431.85
  6. Step 6: Final answer
    x = 75,746.76

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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.