Home / 104,378.04-156,370.22-80,889.66

Finding the Fourth Proportional to 104,378.04, 156,370.22 and 80,889.66

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Solution

The fourth proportional to 104,378.04, 156,370.22 and 80,889.66 is: 121,181.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,378.04 : 156,370.22 = 80,889.66 : x
  2. Step 2: Convert to fraction form
    104,378.04/156,370.22 = 80,889.66/x
  3. Step 3: Cross multiply
    104,378.04x = 156,370.22 × 80,889.66
  4. Step 4: Simplify right side
    104,378.04x = 12,648,733,929.93
  5. Step 5: Solve for x
    x = 12,648,733,929.93/104,378.04
  6. Step 6: Final answer
    x = 121,181.95

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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.