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Finding the Fourth Proportional to 172,864.44, 238,611.96 and 101,267.28

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Solution

The fourth proportional to 172,864.44, 238,611.96 and 101,267.28 is: 139,783.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,864.44 : 238,611.96 = 101,267.28 : x
  2. Step 2: Convert to fraction form
    172,864.44/238,611.96 = 101,267.28/x
  3. Step 3: Cross multiply
    172,864.44x = 238,611.96 × 101,267.28
  4. Step 4: Simplify right side
    172,864.44x = 24,163,584,164.67
  5. Step 5: Solve for x
    x = 24,163,584,164.67/172,864.44
  6. Step 6: Final answer
    x = 139,783.43

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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.