Home / 141,965.32-195,896.58-78,299.08

Finding the Fourth Proportional to 141,965.32, 195,896.58 and 78,299.08

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Solution

The fourth proportional to 141,965.32, 195,896.58 and 78,299.08 is: 108,044.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,965.32 : 195,896.58 = 78,299.08 : x
  2. Step 2: Convert to fraction form
    141,965.32/195,896.58 = 78,299.08/x
  3. Step 3: Cross multiply
    141,965.32x = 195,896.58 × 78,299.08
  4. Step 4: Simplify right side
    141,965.32x = 15,338,521,989.15
  5. Step 5: Solve for x
    x = 15,338,521,989.15/141,965.32
  6. Step 6: Final answer
    x = 108,044.15

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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.