Home / 142,566.36-196,744.86-78,906.84

Finding the Fourth Proportional to 142,566.36, 196,744.86 and 78,906.84

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Solution

The fourth proportional to 142,566.36, 196,744.86 and 78,906.84 is: 108,893.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,566.36 : 196,744.86 = 78,906.84 : x
  2. Step 2: Convert to fraction form
    142,566.36/196,744.86 = 78,906.84/x
  3. Step 3: Cross multiply
    142,566.36x = 196,744.86 × 78,906.84
  4. Step 4: Simplify right side
    142,566.36x = 15,524,515,188.84
  5. Step 5: Solve for x
    x = 15,524,515,188.84/142,566.36
  6. Step 6: Final answer
    x = 108,893.26

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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.