Home / 143,632.93-198,213.42-79,985.74

Finding the Fourth Proportional to 143,632.93, 198,213.42 and 79,985.74

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Solution

The fourth proportional to 143,632.93, 198,213.42 and 79,985.74 is: 110,380.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,632.93 : 198,213.42 = 79,985.74 : x
  2. Step 2: Convert to fraction form
    143,632.93/198,213.42 = 79,985.74/x
  3. Step 3: Cross multiply
    143,632.93x = 198,213.42 × 79,985.74
  4. Step 4: Simplify right side
    143,632.93x = 15,854,247,076.63
  5. Step 5: Solve for x
    x = 15,854,247,076.63/143,632.93
  6. Step 6: Final answer
    x = 110,380.31

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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.