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Finding the Fourth Proportional to 172,329.46, 237,654.21 and 111,835.42

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Solution

The fourth proportional to 172,329.46, 237,654.21 and 111,835.42 is: 154,228.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,329.46 : 237,654.21 = 111,835.42 : x
  2. Step 2: Convert to fraction form
    172,329.46/237,654.21 = 111,835.42/x
  3. Step 3: Cross multiply
    172,329.46x = 237,654.21 × 111,835.42
  4. Step 4: Simplify right side
    172,329.46x = 26,578,158,390.12
  5. Step 5: Solve for x
    x = 26,578,158,390.12/172,329.46
  6. Step 6: Final answer
    x = 154,228.76

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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.