Home / 158,813.73-219,163.38-87,198.39

Finding the Fourth Proportional to 158,813.73, 219,163.38 and 87,198.39

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Solution

The fourth proportional to 158,813.73, 219,163.38 and 87,198.39 is: 120,334.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,813.73 : 219,163.38 = 87,198.39 : x
  2. Step 2: Convert to fraction form
    158,813.73/219,163.38 = 87,198.39/x
  3. Step 3: Cross multiply
    158,813.73x = 219,163.38 × 87,198.39
  4. Step 4: Simplify right side
    158,813.73x = 19,110,695,031.81
  5. Step 5: Solve for x
    x = 19,110,695,031.81/158,813.73
  6. Step 6: Final answer
    x = 120,334.02

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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.