Home / 141,629.76-195,448.32-77,965.92

Finding the Fourth Proportional to 141,629.76, 195,448.32 and 77,965.92

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Solution

The fourth proportional to 141,629.76, 195,448.32 and 77,965.92 is: 107,592.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,629.76 : 195,448.32 = 77,965.92 : x
  2. Step 2: Convert to fraction form
    141,629.76/195,448.32 = 77,965.92/x
  3. Step 3: Cross multiply
    141,629.76x = 195,448.32 × 77,965.92
  4. Step 4: Simplify right side
    141,629.76x = 15,238,308,081.25
  5. Step 5: Solve for x
    x = 15,238,308,081.25/141,629.76
  6. Step 6: Final answer
    x = 107,592.56

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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.