Home / 219,840.21-329,537.77-86,814.32

Finding the Fourth Proportional to 219,840.21, 329,537.77 and 86,814.32

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Solution

The fourth proportional to 219,840.21, 329,537.77 and 86,814.32 is: 130,133.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,840.21 : 329,537.77 = 86,814.32 : x
  2. Step 2: Convert to fraction form
    219,840.21/329,537.77 = 86,814.32/x
  3. Step 3: Cross multiply
    219,840.21x = 329,537.77 × 86,814.32
  4. Step 4: Simplify right side
    219,840.21x = 28,608,595,552.14
  5. Step 5: Solve for x
    x = 28,608,595,552.14/219,840.21
  6. Step 6: Final answer
    x = 130,133.59

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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.