Home / 140,378.61-193,722.19-79,949.28

Finding the Fourth Proportional to 140,378.61, 193,722.19 and 79,949.28

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Solution

The fourth proportional to 140,378.61, 193,722.19 and 79,949.28 is: 110,329.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,378.61 : 193,722.19 = 79,949.28 : x
  2. Step 2: Convert to fraction form
    140,378.61/193,722.19 = 79,949.28/x
  3. Step 3: Cross multiply
    140,378.61x = 193,722.19 × 79,949.28
  4. Step 4: Simplify right side
    140,378.61x = 15,487,949,610.52
  5. Step 5: Solve for x
    x = 15,487,949,610.52/140,378.61
  6. Step 6: Final answer
    x = 110,329.84

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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.