Home / 154,382.75-231,712.51-129,239.64

Finding the Fourth Proportional to 154,382.75, 231,712.51 and 129,239.64

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Solution

The fourth proportional to 154,382.75, 231,712.51 and 129,239.64 is: 193,975.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,382.75 : 231,712.51 = 129,239.64 : x
  2. Step 2: Convert to fraction form
    154,382.75/231,712.51 = 129,239.64/x
  3. Step 3: Cross multiply
    154,382.75x = 231,712.51 × 129,239.64
  4. Step 4: Simplify right side
    154,382.75x = 29,946,441,151.02
  5. Step 5: Solve for x
    x = 29,946,441,151.02/154,382.75
  6. Step 6: Final answer
    x = 193,975.31

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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.