Home / 143,493.64-198,023.88-79,837.36

Finding the Fourth Proportional to 143,493.64, 198,023.88 and 79,837.36

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Solution

The fourth proportional to 143,493.64, 198,023.88 and 79,837.36 is: 110,177.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,493.64 : 198,023.88 = 79,837.36 : x
  2. Step 2: Convert to fraction form
    143,493.64/198,023.88 = 79,837.36/x
  3. Step 3: Cross multiply
    143,493.64x = 198,023.88 × 79,837.36
  4. Step 4: Simplify right side
    143,493.64x = 15,809,703,796.16
  5. Step 5: Solve for x
    x = 15,809,703,796.16/143,493.64
  6. Step 6: Final answer
    x = 110,177.03

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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.