Home / 154,477.31-231,803.55-83,399.00

Finding the Fourth Proportional to 154,477.31, 231,803.55 and 83,399.00

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Solution

The fourth proportional to 154,477.31, 231,803.55 and 83,399.00 is: 125,145.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,477.31 : 231,803.55 = 83,399.00 : x
  2. Step 2: Convert to fraction form
    154,477.31/231,803.55 = 83,399.00/x
  3. Step 3: Cross multiply
    154,477.31x = 231,803.55 × 83,399.00
  4. Step 4: Simplify right side
    154,477.31x = 19,332,183,107.43
  5. Step 5: Solve for x
    x = 19,332,183,107.43/154,477.31
  6. Step 6: Final answer
    x = 125,145.78

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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.