Home / 154,801.20-231,983.10-107,999.40

Finding the Fourth Proportional to 154,801.20, 231,983.10 and 107,999.40

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Solution

The fourth proportional to 154,801.20, 231,983.10 and 107,999.40 is: 161,846.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,801.20 : 231,983.10 = 107,999.40 : x
  2. Step 2: Convert to fraction form
    154,801.20/231,983.10 = 107,999.40/x
  3. Step 3: Cross multiply
    154,801.20x = 231,983.10 × 107,999.40
  4. Step 4: Simplify right side
    154,801.20x = 25,054,035,610.14
  5. Step 5: Solve for x
    x = 25,054,035,610.14/154,801.20
  6. Step 6: Final answer
    x = 161,846.52

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1.5x scale

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.