Home / 156,571.18-216,067.30-84,949.66

Finding the Fourth Proportional to 156,571.18, 216,067.30 and 84,949.66

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Solution

The fourth proportional to 156,571.18, 216,067.30 and 84,949.66 is: 117,230.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,571.18 : 216,067.30 = 84,949.66 : x
  2. Step 2: Convert to fraction form
    156,571.18/216,067.30 = 84,949.66/x
  3. Step 3: Cross multiply
    156,571.18x = 216,067.30 × 84,949.66
  4. Step 4: Simplify right side
    156,571.18x = 18,354,843,729.83
  5. Step 5: Solve for x
    x = 18,354,843,729.83/156,571.18
  6. Step 6: Final answer
    x = 117,230.03

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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.