Home / 140,074.24-193,339.20-79,680.32

Finding the Fourth Proportional to 140,074.24, 193,339.20 and 79,680.32

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Solution

The fourth proportional to 140,074.24, 193,339.20 and 79,680.32 is: 109,979.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,074.24 : 193,339.20 = 79,680.32 : x
  2. Step 2: Convert to fraction form
    140,074.24/193,339.20 = 79,680.32/x
  3. Step 3: Cross multiply
    140,074.24x = 193,339.20 × 79,680.32
  4. Step 4: Simplify right side
    140,074.24x = 15,405,329,324.54
  5. Step 5: Solve for x
    x = 15,405,329,324.54/140,074.24
  6. Step 6: Final answer
    x = 109,979.75

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1.5x scale

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.