Home / 159,095.21-219,552.26-87,479.87

Finding the Fourth Proportional to 159,095.21, 219,552.26 and 87,479.87

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Solution

The fourth proportional to 159,095.21, 219,552.26 and 87,479.87 is: 120,722.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,095.21 : 219,552.26 = 87,479.87 : x
  2. Step 2: Convert to fraction form
    159,095.21/219,552.26 = 87,479.87/x
  3. Step 3: Cross multiply
    159,095.21x = 219,552.26 × 87,479.87
  4. Step 4: Simplify right side
    159,095.21x = 19,206,401,627.85
  5. Step 5: Solve for x
    x = 19,206,401,627.85/159,095.21
  6. Step 6: Final answer
    x = 120,722.69

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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.