Home / 142,724.88-196,520.64-126,781.68

Finding the Fourth Proportional to 142,724.88, 196,520.64 and 126,781.68

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Solution

The fourth proportional to 142,724.88, 196,520.64 and 126,781.68 is: 174,568.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,724.88 : 196,520.64 = 126,781.68 : x
  2. Step 2: Convert to fraction form
    142,724.88/196,520.64 = 126,781.68/x
  3. Step 3: Cross multiply
    142,724.88x = 196,520.64 × 126,781.68
  4. Step 4: Simplify right side
    142,724.88x = 24,915,216,893.88
  5. Step 5: Solve for x
    x = 24,915,216,893.88/142,724.88
  6. Step 6: Final answer
    x = 174,568.14

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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.