Home / 214,578.85-296,088.57-128,517.68

Finding the Fourth Proportional to 214,578.85, 296,088.57 and 128,517.68

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Solution

The fourth proportional to 214,578.85, 296,088.57 and 128,517.68 is: 177,336.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,578.85 : 296,088.57 = 128,517.68 : x
  2. Step 2: Convert to fraction form
    214,578.85/296,088.57 = 128,517.68/x
  3. Step 3: Cross multiply
    214,578.85x = 296,088.57 × 128,517.68
  4. Step 4: Simplify right side
    214,578.85x = 38,052,614,610.47
  5. Step 5: Solve for x
    x = 38,052,614,610.47/214,578.85
  6. Step 6: Final answer
    x = 177,336.28

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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.