Home / 158,949.68-219,346.11-87,329.66

Finding the Fourth Proportional to 158,949.68, 219,346.11 and 87,329.66

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Solution

The fourth proportional to 158,949.68, 219,346.11 and 87,329.66 is: 120,512.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,949.68 : 219,346.11 = 87,329.66 : x
  2. Step 2: Convert to fraction form
    158,949.68/219,346.11 = 87,329.66/x
  3. Step 3: Cross multiply
    158,949.68x = 219,346.11 × 87,329.66
  4. Step 4: Simplify right side
    158,949.68x = 19,155,420,111.89
  5. Step 5: Solve for x
    x = 19,155,420,111.89/158,949.68
  6. Step 6: Final answer
    x = 120,512.48

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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.