Home / 141,873.55-195,786.81-78,213.63

Finding the Fourth Proportional to 141,873.55, 195,786.81 and 78,213.63

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Solution

The fourth proportional to 141,873.55, 195,786.81 and 78,213.63 is: 107,935.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,873.55 : 195,786.81 = 78,213.63 : x
  2. Step 2: Convert to fraction form
    141,873.55/195,786.81 = 78,213.63/x
  3. Step 3: Cross multiply
    141,873.55x = 195,786.81 × 78,213.63
  4. Step 4: Simplify right side
    141,873.55x = 15,313,197,116.22
  5. Step 5: Solve for x
    x = 15,313,197,116.22/141,873.55
  6. Step 6: Final answer
    x = 107,935.53

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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.