Home / 220,818.74-331,228.17-71,070.75

Finding the Fourth Proportional to 220,818.74, 331,228.17 and 71,070.75

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Solution

The fourth proportional to 220,818.74, 331,228.17 and 71,070.75 is: 106,606.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,818.74 : 331,228.17 = 71,070.75 : x
  2. Step 2: Convert to fraction form
    220,818.74/331,228.17 = 71,070.75/x
  3. Step 3: Cross multiply
    220,818.74x = 331,228.17 × 71,070.75
  4. Step 4: Simplify right side
    220,818.74x = 23,540,634,463.03
  5. Step 5: Solve for x
    x = 23,540,634,463.03/220,818.74
  6. Step 6: Final answer
    x = 106,606.15

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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.