Home / 215,831.12-297,847.26-120,343.86

Finding the Fourth Proportional to 215,831.12, 297,847.26 and 120,343.86

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Solution

The fourth proportional to 215,831.12, 297,847.26 and 120,343.86 is: 166,074.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,831.12 : 297,847.26 = 120,343.86 : x
  2. Step 2: Convert to fraction form
    215,831.12/297,847.26 = 120,343.86/x
  3. Step 3: Cross multiply
    215,831.12x = 297,847.26 × 120,343.86
  4. Step 4: Simplify right side
    215,831.12x = 35,844,088,958.82
  5. Step 5: Solve for x
    x = 35,844,088,958.82/215,831.12
  6. Step 6: Final answer
    x = 166,074.71

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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.