Home / 159,837.91-220,576.77-87,241.46

Finding the Fourth Proportional to 159,837.91, 220,576.77 and 87,241.46

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Solution

The fourth proportional to 159,837.91, 220,576.77 and 87,241.46 is: 120,393.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,837.91 : 220,576.77 = 87,241.46 : x
  2. Step 2: Convert to fraction form
    159,837.91/220,576.77 = 87,241.46/x
  3. Step 3: Cross multiply
    159,837.91x = 220,576.77 × 87,241.46
  4. Step 4: Simplify right side
    159,837.91x = 19,243,438,354.00
  5. Step 5: Solve for x
    x = 19,243,438,354.00/159,837.91
  6. Step 6: Final answer
    x = 120,393.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.