Home / 159,243.03-219,749.90-87,616.35

Finding the Fourth Proportional to 159,243.03, 219,749.90 and 87,616.35

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Solution

The fourth proportional to 159,243.03, 219,749.90 and 87,616.35 is: 120,907.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,243.03 : 219,749.90 = 87,616.35 : x
  2. Step 2: Convert to fraction form
    159,243.03/219,749.90 = 87,616.35/x
  3. Step 3: Cross multiply
    159,243.03x = 219,749.90 × 87,616.35
  4. Step 4: Simplify right side
    159,243.03x = 19,253,683,712.78
  5. Step 5: Solve for x
    x = 19,253,683,712.78/159,243.03
  6. Step 6: Final answer
    x = 120,907.54

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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.