Home / 154,464.30-231,696.45-121,286.70

Finding the Fourth Proportional to 154,464.30, 231,696.45 and 121,286.70

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Solution

The fourth proportional to 154,464.30, 231,696.45 and 121,286.70 is: 181,930.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,464.30 : 231,696.45 = 121,286.70 : x
  2. Step 2: Convert to fraction form
    154,464.30/231,696.45 = 121,286.70/x
  3. Step 3: Cross multiply
    154,464.30x = 231,696.45 × 121,286.70
  4. Step 4: Simplify right side
    154,464.30x = 28,101,697,822.22
  5. Step 5: Solve for x
    x = 28,101,697,822.22/154,464.30
  6. Step 6: Final answer
    x = 181,930.05

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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.