Home / 142,703.97-196,924.44-78,173.48

Finding the Fourth Proportional to 142,703.97, 196,924.44 and 78,173.48

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Solution

The fourth proportional to 142,703.97, 196,924.44 and 78,173.48 is: 107,875.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,703.97 : 196,924.44 = 78,173.48 : x
  2. Step 2: Convert to fraction form
    142,703.97/196,924.44 = 78,173.48/x
  3. Step 3: Cross multiply
    142,703.97x = 196,924.44 × 78,173.48
  4. Step 4: Simplify right side
    142,703.97x = 15,394,269,483.09
  5. Step 5: Solve for x
    x = 15,394,269,483.09/142,703.97
  6. Step 6: Final answer
    x = 107,875.55

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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.