Home / 120,263.86-180,198.78-64,044.28

Finding the Fourth Proportional to 120,263.86, 180,198.78 and 64,044.28

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Solution

The fourth proportional to 120,263.86, 180,198.78 and 64,044.28 is: 95,961.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,263.86 : 180,198.78 = 64,044.28 : x
  2. Step 2: Convert to fraction form
    120,263.86/180,198.78 = 64,044.28/x
  3. Step 3: Cross multiply
    120,263.86x = 180,198.78 × 64,044.28
  4. Step 4: Simplify right side
    120,263.86x = 11,540,701,121.98
  5. Step 5: Solve for x
    x = 11,540,701,121.98/120,263.86
  6. Step 6: Final answer
    x = 95,961.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.