Home / 109,104.42-150,478.61-74,669.52

Finding the Fourth Proportional to 109,104.42, 150,478.61 and 74,669.52

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Solution

The fourth proportional to 109,104.42, 150,478.61 and 74,669.52 is: 102,985.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,104.42 : 150,478.61 = 74,669.52 : x
  2. Step 2: Convert to fraction form
    109,104.42/150,478.61 = 74,669.52/x
  3. Step 3: Cross multiply
    109,104.42x = 150,478.61 × 74,669.52
  4. Step 4: Simplify right side
    109,104.42x = 11,236,165,578.97
  5. Step 5: Solve for x
    x = 11,236,165,578.97/109,104.42
  6. Step 6: Final answer
    x = 102,985.43

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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.