Home / 197,860.11-296,679.19-85,470.18

Finding the Fourth Proportional to 197,860.11, 296,679.19 and 85,470.18

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Solution

The fourth proportional to 197,860.11, 296,679.19 and 85,470.18 is: 128,157.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,860.11 : 296,679.19 = 85,470.18 : x
  2. Step 2: Convert to fraction form
    197,860.11/296,679.19 = 85,470.18/x
  3. Step 3: Cross multiply
    197,860.11x = 296,679.19 × 85,470.18
  4. Step 4: Simplify right side
    197,860.11x = 25,357,223,771.55
  5. Step 5: Solve for x
    x = 25,357,223,771.55/197,860.11
  6. Step 6: Final answer
    x = 128,157.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.