Home / 154,128.24-231,104.79-91,842.48

Finding the Fourth Proportional to 154,128.24, 231,104.79 and 91,842.48

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Solution

The fourth proportional to 154,128.24, 231,104.79 and 91,842.48 is: 137,711.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,128.24 : 231,104.79 = 91,842.48 : x
  2. Step 2: Convert to fraction form
    154,128.24/231,104.79 = 91,842.48/x
  3. Step 3: Cross multiply
    154,128.24x = 231,104.79 × 91,842.48
  4. Step 4: Simplify right side
    154,128.24x = 21,225,237,053.48
  5. Step 5: Solve for x
    x = 21,225,237,053.48/154,128.24
  6. Step 6: Final answer
    x = 137,711.54

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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.