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Finding the Fourth Proportional to 172,902, 238,604.76 and 93,414

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Solution

The fourth proportional to 172,902, 238,604.76 and 93,414 is: 128,911.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,902 : 238,604.76 = 93,414 : x
  2. Step 2: Convert to fraction form
    172,902/238,604.76 = 93,414/x
  3. Step 3: Cross multiply
    172,902x = 238,604.76 × 93,414
  4. Step 4: Simplify right side
    172,902x = 22,289,025,050.64
  5. Step 5: Solve for x
    x = 22,289,025,050.64/172,902
  6. Step 6: Final answer
    x = 128,911.32

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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.