Home / 143,557.61-198,105.36-79,894.04

Finding the Fourth Proportional to 143,557.61, 198,105.36 and 79,894.04

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Solution

The fourth proportional to 143,557.61, 198,105.36 and 79,894.04 is: 110,251.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,557.61 : 198,105.36 = 79,894.04 : x
  2. Step 2: Convert to fraction form
    143,557.61/198,105.36 = 79,894.04/x
  3. Step 3: Cross multiply
    143,557.61x = 198,105.36 × 79,894.04
  4. Step 4: Simplify right side
    143,557.61x = 15,827,437,556.05
  5. Step 5: Solve for x
    x = 15,827,437,556.05/143,557.61
  6. Step 6: Final answer
    x = 110,251.47

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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.