Home / 146,921.18-220,372.52-87,712.27

Finding the Fourth Proportional to 146,921.18, 220,372.52 and 87,712.27

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Solution

The fourth proportional to 146,921.18, 220,372.52 and 87,712.27 is: 131,562.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,921.18 : 220,372.52 = 87,712.27 : x
  2. Step 2: Convert to fraction form
    146,921.18/220,372.52 = 87,712.27/x
  3. Step 3: Cross multiply
    146,921.18x = 220,372.52 × 87,712.27
  4. Step 4: Simplify right side
    146,921.18x = 19,329,372,985.33
  5. Step 5: Solve for x
    x = 19,329,372,985.33/146,921.18
  6. Step 6: Final answer
    x = 131,562.88

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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.