Home / 143,566.49-198,119.76-79,904.30

Finding the Fourth Proportional to 143,566.49, 198,119.76 and 79,904.30

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Solution

The fourth proportional to 143,566.49, 198,119.76 and 79,904.30 is: 110,266.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,566.49 : 198,119.76 = 79,904.30 : x
  2. Step 2: Convert to fraction form
    143,566.49/198,119.76 = 79,904.30/x
  3. Step 3: Cross multiply
    143,566.49x = 198,119.76 × 79,904.30
  4. Step 4: Simplify right side
    143,566.49x = 15,830,620,738.97
  5. Step 5: Solve for x
    x = 15,830,620,738.97/143,566.49
  6. Step 6: Final answer
    x = 110,266.82

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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.