Home / 142,919.73-196,780.19-121,364.28

Finding the Fourth Proportional to 142,919.73, 196,780.19 and 121,364.28

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Solution

The fourth proportional to 142,919.73, 196,780.19 and 121,364.28 is: 167,101.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,919.73 : 196,780.19 = 121,364.28 : x
  2. Step 2: Convert to fraction form
    142,919.73/196,780.19 = 121,364.28/x
  3. Step 3: Cross multiply
    142,919.73x = 196,780.19 × 121,364.28
  4. Step 4: Simplify right side
    142,919.73x = 23,882,085,470.79
  5. Step 5: Solve for x
    x = 23,882,085,470.79/142,919.73
  6. Step 6: Final answer
    x = 167,101.39

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.