Home / 142,693.03-196,913.97-79,029.46

Finding the Fourth Proportional to 142,693.03, 196,913.97 and 79,029.46

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Solution

The fourth proportional to 142,693.03, 196,913.97 and 79,029.46 is: 109,059.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,693.03 : 196,913.97 = 79,029.46 : x
  2. Step 2: Convert to fraction form
    142,693.03/196,913.97 = 79,029.46/x
  3. Step 3: Cross multiply
    142,693.03x = 196,913.97 × 79,029.46
  4. Step 4: Simplify right side
    142,693.03x = 15,562,004,961.70
  5. Step 5: Solve for x
    x = 15,562,004,961.70/142,693.03
  6. Step 6: Final answer
    x = 109,059.32

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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.