Home / 219,816.60-329,552.65-86,796.43

Finding the Fourth Proportional to 219,816.60, 329,552.65 and 86,796.43

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Solution

The fourth proportional to 219,816.60, 329,552.65 and 86,796.43 is: 130,126.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,816.60 : 329,552.65 = 86,796.43 : x
  2. Step 2: Convert to fraction form
    219,816.60/329,552.65 = 86,796.43/x
  3. Step 3: Cross multiply
    219,816.60x = 329,552.65 × 86,796.43
  4. Step 4: Simplify right side
    219,816.60x = 28,603,992,801.65
  5. Step 5: Solve for x
    x = 28,603,992,801.65/219,816.60
  6. Step 6: Final answer
    x = 130,126.63

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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.