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Finding the Fourth Proportional to 171,696, 237,018.08 and 108,127.20

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Solution

The fourth proportional to 171,696, 237,018.08 and 108,127.20 is: 149,264.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,696 : 237,018.08 = 108,127.20 : x
  2. Step 2: Convert to fraction form
    171,696/237,018.08 = 108,127.20/x
  3. Step 3: Cross multiply
    171,696x = 237,018.08 × 108,127.20
  4. Step 4: Simplify right side
    171,696x = 25,628,101,339.78
  5. Step 5: Solve for x
    x = 25,628,101,339.78/171,696
  6. Step 6: Final answer
    x = 149,264.41

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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.