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Finding the Fourth Proportional to 154,212.66, 231,054.73 and 103,516.79

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Solution

The fourth proportional to 154,212.66, 231,054.73 and 103,516.79 is: 155,097.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,212.66 : 231,054.73 = 103,516.79 : x
  2. Step 2: Convert to fraction form
    154,212.66/231,054.73 = 103,516.79/x
  3. Step 3: Cross multiply
    154,212.66x = 231,054.73 × 103,516.79
  4. Step 4: Simplify right side
    154,212.66x = 23,918,042,549.85
  5. Step 5: Solve for x
    x = 23,918,042,549.85/154,212.66
  6. Step 6: Final answer
    x = 155,097.79

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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.