Home / 143,867.16-198,534.51-80,203.32

Finding the Fourth Proportional to 143,867.16, 198,534.51 and 80,203.32

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Solution

The fourth proportional to 143,867.16, 198,534.51 and 80,203.32 is: 110,679.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,867.16 : 198,534.51 = 80,203.32 : x
  2. Step 2: Convert to fraction form
    143,867.16/198,534.51 = 80,203.32/x
  3. Step 3: Cross multiply
    143,867.16x = 198,534.51 × 80,203.32
  4. Step 4: Simplify right side
    143,867.16x = 15,923,126,836.57
  5. Step 5: Solve for x
    x = 15,923,126,836.57/143,867.16
  6. Step 6: Final answer
    x = 110,679.37

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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.