Home / 109,621.20-164,470.20-39,502.80

Finding the Fourth Proportional to 109,621.20, 164,470.20 and 39,502.80

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Solution

The fourth proportional to 109,621.20, 164,470.20 and 39,502.80 is: 59,268.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,621.20 : 164,470.20 = 39,502.80 : x
  2. Step 2: Convert to fraction form
    109,621.20/164,470.20 = 39,502.80/x
  3. Step 3: Cross multiply
    109,621.20x = 164,470.20 × 39,502.80
  4. Step 4: Simplify right side
    109,621.20x = 6,497,033,416.56
  5. Step 5: Solve for x
    x = 6,497,033,416.56/109,621.20
  6. Step 6: Final answer
    x = 59,268.04

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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.