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Finding the Fourth Proportional to 172,065.78, 237,476.61 and 123,827.42

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Solution

The fourth proportional to 172,065.78, 237,476.61 and 123,827.42 is: 170,900.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,065.78 : 237,476.61 = 123,827.42 : x
  2. Step 2: Convert to fraction form
    172,065.78/237,476.61 = 123,827.42/x
  3. Step 3: Cross multiply
    172,065.78x = 237,476.61 × 123,827.42
  4. Step 4: Simplify right side
    172,065.78x = 29,406,115,926.65
  5. Step 5: Solve for x
    x = 29,406,115,926.65/172,065.78
  6. Step 6: Final answer
    x = 170,900.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.