Home / 141,288.75-194,891.94-83,889.09

Finding the Fourth Proportional to 141,288.75, 194,891.94 and 83,889.09

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Solution

The fourth proportional to 141,288.75, 194,891.94 and 83,889.09 is: 115,715.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,288.75 : 194,891.94 = 83,889.09 : x
  2. Step 2: Convert to fraction form
    141,288.75/194,891.94 = 83,889.09/x
  3. Step 3: Cross multiply
    141,288.75x = 194,891.94 × 83,889.09
  4. Step 4: Simplify right side
    141,288.75x = 16,349,307,494.93
  5. Step 5: Solve for x
    x = 16,349,307,494.93/141,288.75
  6. Step 6: Final answer
    x = 115,715.56

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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.