Home / 143,932.52-198,627.06-79,400.28

Finding the Fourth Proportional to 143,932.52, 198,627.06 and 79,400.28

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Solution

The fourth proportional to 143,932.52, 198,627.06 and 79,400.28 is: 109,572.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,932.52 : 198,627.06 = 79,400.28 : x
  2. Step 2: Convert to fraction form
    143,932.52/198,627.06 = 79,400.28/x
  3. Step 3: Cross multiply
    143,932.52x = 198,627.06 × 79,400.28
  4. Step 4: Simplify right side
    143,932.52x = 15,771,044,179.58
  5. Step 5: Solve for x
    x = 15,771,044,179.58/143,932.52
  6. Step 6: Final answer
    x = 109,572.49

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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.