Home / 141,220.45-194,883.46-76,689.11

Finding the Fourth Proportional to 141,220.45, 194,883.46 and 76,689.11

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Solution

The fourth proportional to 141,220.45, 194,883.46 and 76,689.11 is: 105,830.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,220.45 : 194,883.46 = 76,689.11 : x
  2. Step 2: Convert to fraction form
    141,220.45/194,883.46 = 76,689.11/x
  3. Step 3: Cross multiply
    141,220.45x = 194,883.46 × 76,689.11
  4. Step 4: Simplify right side
    141,220.45x = 14,945,439,396.61
  5. Step 5: Solve for x
    x = 14,945,439,396.61/141,220.45
  6. Step 6: Final answer
    x = 105,830.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.