Home / 129,249.87-178,277.15-83,846.71

Finding the Fourth Proportional to 129,249.87, 178,277.15 and 83,846.71

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Solution

The fourth proportional to 129,249.87, 178,277.15 and 83,846.71 is: 115,651.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,249.87 : 178,277.15 = 83,846.71 : x
  2. Step 2: Convert to fraction form
    129,249.87/178,277.15 = 83,846.71/x
  3. Step 3: Cross multiply
    129,249.87x = 178,277.15 × 83,846.71
  4. Step 4: Simplify right side
    129,249.87x = 14,947,952,495.68
  5. Step 5: Solve for x
    x = 14,947,952,495.68/129,249.87
  6. Step 6: Final answer
    x = 115,651.59

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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.