Home / 159,083.90-219,530.17-87,463.37

Finding the Fourth Proportional to 159,083.90, 219,530.17 and 87,463.37

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Solution

The fourth proportional to 159,083.90, 219,530.17 and 87,463.37 is: 120,696.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,083.90 : 219,530.17 = 87,463.37 : x
  2. Step 2: Convert to fraction form
    159,083.90/219,530.17 = 87,463.37/x
  3. Step 3: Cross multiply
    159,083.90x = 219,530.17 × 87,463.37
  4. Step 4: Simplify right side
    159,083.90x = 19,200,848,101.13
  5. Step 5: Solve for x
    x = 19,200,848,101.13/159,083.90
  6. Step 6: Final answer
    x = 120,696.36

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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.