Home / 195,998.60-270,538.98-155,783.72

Finding the Fourth Proportional to 195,998.60, 270,538.98 and 155,783.72

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Solution

The fourth proportional to 195,998.60, 270,538.98 and 155,783.72 is: 215,029.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    195,998.60 : 270,538.98 = 155,783.72 : x
  2. Step 2: Convert to fraction form
    195,998.60/270,538.98 = 155,783.72/x
  3. Step 3: Cross multiply
    195,998.60x = 270,538.98 × 155,783.72
  4. Step 4: Simplify right side
    195,998.60x = 42,145,568,709.41
  5. Step 5: Solve for x
    x = 42,145,568,709.41/195,998.60
  6. Step 6: Final answer
    x = 215,029.95

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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.