Home / 140,410.41-193,739.49-79,979.73

Finding the Fourth Proportional to 140,410.41, 193,739.49 and 79,979.73

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Solution

The fourth proportional to 140,410.41, 193,739.49 and 79,979.73 is: 110,356.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,410.41 : 193,739.49 = 79,979.73 : x
  2. Step 2: Convert to fraction form
    140,410.41/193,739.49 = 79,979.73/x
  3. Step 3: Cross multiply
    140,410.41x = 193,739.49 × 79,979.73
  4. Step 4: Simplify right side
    140,410.41x = 15,495,232,100.54
  5. Step 5: Solve for x
    x = 15,495,232,100.54/140,410.41
  6. Step 6: Final answer
    x = 110,356.72

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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.