Home / 141,358.57-195,086.78-77,709.58

Finding the Fourth Proportional to 141,358.57, 195,086.78 and 77,709.58

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Solution

The fourth proportional to 141,358.57, 195,086.78 and 77,709.58 is: 107,245.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,358.57 : 195,086.78 = 77,709.58 : x
  2. Step 2: Convert to fraction form
    141,358.57/195,086.78 = 77,709.58/x
  3. Step 3: Cross multiply
    141,358.57x = 195,086.78 × 77,709.58
  4. Step 4: Simplify right side
    141,358.57x = 15,160,111,152.50
  5. Step 5: Solve for x
    x = 15,160,111,152.50/141,358.57
  6. Step 6: Final answer
    x = 107,245.79

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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.