Home / 217,069.64-325,342.02-111,831.20

Finding the Fourth Proportional to 217,069.64, 325,342.02 and 111,831.20

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Solution

The fourth proportional to 217,069.64, 325,342.02 and 111,831.20 is: 167,611.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,069.64 : 325,342.02 = 111,831.20 : x
  2. Step 2: Convert to fraction form
    217,069.64/325,342.02 = 111,831.20/x
  3. Step 3: Cross multiply
    217,069.64x = 325,342.02 × 111,831.20
  4. Step 4: Simplify right side
    217,069.64x = 36,383,388,507.02
  5. Step 5: Solve for x
    x = 36,383,388,507.02/217,069.64
  6. Step 6: Final answer
    x = 167,611.59

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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.