Home / 154,890.36-231,748.62-91,744.36

Finding the Fourth Proportional to 154,890.36, 231,748.62 and 91,744.36

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Solution

The fourth proportional to 154,890.36, 231,748.62 and 91,744.36 is: 137,268.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,890.36 : 231,748.62 = 91,744.36 : x
  2. Step 2: Convert to fraction form
    154,890.36/231,748.62 = 91,744.36/x
  3. Step 3: Cross multiply
    154,890.36x = 231,748.62 × 91,744.36
  4. Step 4: Simplify right side
    154,890.36x = 21,261,628,822.78
  5. Step 5: Solve for x
    x = 21,261,628,822.78/154,890.36
  6. Step 6: Final answer
    x = 137,268.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.