Home / 143,967.20-198,673.38-79,437.02

Finding the Fourth Proportional to 143,967.20, 198,673.38 and 79,437.02

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Solution

The fourth proportional to 143,967.20, 198,673.38 and 79,437.02 is: 109,622.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,967.20 : 198,673.38 = 79,437.02 : x
  2. Step 2: Convert to fraction form
    143,967.20/198,673.38 = 79,437.02/x
  3. Step 3: Cross multiply
    143,967.20x = 198,673.38 × 79,437.02
  4. Step 4: Simplify right side
    143,967.20x = 15,782,021,260.53
  5. Step 5: Solve for x
    x = 15,782,021,260.53/143,967.20
  6. Step 6: Final answer
    x = 109,622.34

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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.