Home / 154,720.36-231,910.62-79,845.80

Finding the Fourth Proportional to 154,720.36, 231,910.62 and 79,845.80

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Solution

The fourth proportional to 154,720.36, 231,910.62 and 79,845.80 is: 119,681.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,720.36 : 231,910.62 = 79,845.80 : x
  2. Step 2: Convert to fraction form
    154,720.36/231,910.62 = 79,845.80/x
  3. Step 3: Cross multiply
    154,720.36x = 231,910.62 × 79,845.80
  4. Step 4: Simplify right side
    154,720.36x = 18,517,088,982.40
  5. Step 5: Solve for x
    x = 18,517,088,982.40/154,720.36
  6. Step 6: Final answer
    x = 119,681.01

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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.