Home / 141,285-194,977.46-80,875.07

Finding the Fourth Proportional to 141,285, 194,977.46 and 80,875.07

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Solution

The fourth proportional to 141,285, 194,977.46 and 80,875.07 is: 111,609.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,285 : 194,977.46 = 80,875.07 : x
  2. Step 2: Convert to fraction form
    141,285/194,977.46 = 80,875.07/x
  3. Step 3: Cross multiply
    141,285x = 194,977.46 × 80,875.07
  4. Step 4: Simplify right side
    141,285x = 15,768,815,725.92
  5. Step 5: Solve for x
    x = 15,768,815,725.92/141,285
  6. Step 6: Final answer
    x = 111,609.98

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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.