Home / 141,098.28-194,719.32-80,678.76

Finding the Fourth Proportional to 141,098.28, 194,719.32 and 80,678.76

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Solution

The fourth proportional to 141,098.28, 194,719.32 and 80,678.76 is: 111,338.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,098.28 : 194,719.32 = 80,678.76 : x
  2. Step 2: Convert to fraction form
    141,098.28/194,719.32 = 80,678.76/x
  3. Step 3: Cross multiply
    141,098.28x = 194,719.32 × 80,678.76
  4. Step 4: Simplify right side
    141,098.28x = 15,709,713,285.64
  5. Step 5: Solve for x
    x = 15,709,713,285.64/141,098.28
  6. Step 6: Final answer
    x = 111,338.80

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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.