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Finding the Fourth Proportional to 171,738.32, 236,954.02 and 99,123.44

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Solution

The fourth proportional to 171,738.32, 236,954.02 and 99,123.44 is: 136,764.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,738.32 : 236,954.02 = 99,123.44 : x
  2. Step 2: Convert to fraction form
    171,738.32/236,954.02 = 99,123.44/x
  3. Step 3: Cross multiply
    171,738.32x = 236,954.02 × 99,123.44
  4. Step 4: Simplify right side
    171,738.32x = 23,487,697,584.23
  5. Step 5: Solve for x
    x = 23,487,697,584.23/171,738.32
  6. Step 6: Final answer
    x = 136,764.45

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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.