Home / 143,952.42-198,655.08-79,423.90

Finding the Fourth Proportional to 143,952.42, 198,655.08 and 79,423.90

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Solution

The fourth proportional to 143,952.42, 198,655.08 and 79,423.90 is: 109,605.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,952.42 : 198,655.08 = 79,423.90 : x
  2. Step 2: Convert to fraction form
    143,952.42/198,655.08 = 79,423.90/x
  3. Step 3: Cross multiply
    143,952.42x = 198,655.08 × 79,423.90
  4. Step 4: Simplify right side
    143,952.42x = 15,777,961,208.41
  5. Step 5: Solve for x
    x = 15,777,961,208.41/143,952.42
  6. Step 6: Final answer
    x = 109,605.39

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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.