Home / 141,763.45-195,642.39-78,101.23

Finding the Fourth Proportional to 141,763.45, 195,642.39 and 78,101.23

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Solution

The fourth proportional to 141,763.45, 195,642.39 and 78,101.23 is: 107,784.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,763.45 : 195,642.39 = 78,101.23 : x
  2. Step 2: Convert to fraction form
    141,763.45/195,642.39 = 78,101.23/x
  3. Step 3: Cross multiply
    141,763.45x = 195,642.39 × 78,101.23
  4. Step 4: Simplify right side
    141,763.45x = 15,279,911,299.14
  5. Step 5: Solve for x
    x = 15,279,911,299.14/141,763.45
  6. Step 6: Final answer
    x = 107,784.56

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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.