Home / 143,631.84-198,167.04-79,958.64

Finding the Fourth Proportional to 143,631.84, 198,167.04 and 79,958.64

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Solution

The fourth proportional to 143,631.84, 198,167.04 and 79,958.64 is: 110,317.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,631.84 : 198,167.04 = 79,958.64 : x
  2. Step 2: Convert to fraction form
    143,631.84/198,167.04 = 79,958.64/x
  3. Step 3: Cross multiply
    143,631.84x = 198,167.04 × 79,958.64
  4. Step 4: Simplify right side
    143,631.84x = 15,845,167,011.23
  5. Step 5: Solve for x
    x = 15,845,167,011.23/143,631.84
  6. Step 6: Final answer
    x = 110,317.93

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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.