Home / 219,026.43-328,542.21-85,969.35

Finding the Fourth Proportional to 219,026.43, 328,542.21 and 85,969.35

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Solution

The fourth proportional to 219,026.43, 328,542.21 and 85,969.35 is: 128,955.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,026.43 : 328,542.21 = 85,969.35 : x
  2. Step 2: Convert to fraction form
    219,026.43/328,542.21 = 85,969.35/x
  3. Step 3: Cross multiply
    219,026.43x = 328,542.21 × 85,969.35
  4. Step 4: Simplify right side
    219,026.43x = 28,244,560,241.26
  5. Step 5: Solve for x
    x = 28,244,560,241.26/219,026.43
  6. Step 6: Final answer
    x = 128,955.03

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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.