Home / 515,170.56-772,747.20-141,193.56

Finding the Fourth Proportional to 515,170.56, 772,747.20 and 141,193.56

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Solution

The fourth proportional to 515,170.56, 772,747.20 and 141,193.56 is: 211,787.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,170.56 : 772,747.20 = 141,193.56 : x
  2. Step 2: Convert to fraction form
    515,170.56/772,747.20 = 141,193.56/x
  3. Step 3: Cross multiply
    515,170.56x = 772,747.20 × 141,193.56
  4. Step 4: Simplify right side
    515,170.56x = 109,106,928,148.03
  5. Step 5: Solve for x
    x = 109,106,928,148.03/515,170.56
  6. Step 6: Final answer
    x = 211,787.97

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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.