Home / 158,850.86-219,214.89-90,868.57

Finding the Fourth Proportional to 158,850.86, 219,214.89 and 90,868.57

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Solution

The fourth proportional to 158,850.86, 219,214.89 and 90,868.57 is: 125,399.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,850.86 : 219,214.89 = 90,868.57 : x
  2. Step 2: Convert to fraction form
    158,850.86/219,214.89 = 90,868.57/x
  3. Step 3: Cross multiply
    158,850.86x = 219,214.89 × 90,868.57
  4. Step 4: Simplify right side
    158,850.86x = 19,919,743,028.97
  5. Step 5: Solve for x
    x = 19,919,743,028.97/158,850.86
  6. Step 6: Final answer
    x = 125,399.03

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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.