Home / 197,619.70-296,429.55-86,811.70

Finding the Fourth Proportional to 197,619.70, 296,429.55 and 86,811.70

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Solution

The fourth proportional to 197,619.70, 296,429.55 and 86,811.70 is: 130,217.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,619.70 : 296,429.55 = 86,811.70 : x
  2. Step 2: Convert to fraction form
    197,619.70/296,429.55 = 86,811.70/x
  3. Step 3: Cross multiply
    197,619.70x = 296,429.55 × 86,811.70
  4. Step 4: Simplify right side
    197,619.70x = 25,733,553,165.74
  5. Step 5: Solve for x
    x = 25,733,553,165.74/197,619.70
  6. Step 6: Final answer
    x = 130,217.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.