Home / 159,005.48-219,427.72-87,383.96

Finding the Fourth Proportional to 159,005.48, 219,427.72 and 87,383.96

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Solution

The fourth proportional to 159,005.48, 219,427.72 and 87,383.96 is: 120,589.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,005.48 : 219,427.72 = 87,383.96 : x
  2. Step 2: Convert to fraction form
    159,005.48/219,427.72 = 87,383.96/x
  3. Step 3: Cross multiply
    159,005.48x = 219,427.72 × 87,383.96
  4. Step 4: Simplify right side
    159,005.48x = 19,174,463,107.37
  5. Step 5: Solve for x
    x = 19,174,463,107.37/159,005.48
  6. Step 6: Final answer
    x = 120,589.95

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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.