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Finding the Fourth Proportional to 172,798.40, 238,380.30 and 101,134.04

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Solution

The fourth proportional to 172,798.40, 238,380.30 and 101,134.04 is: 139,517.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,798.40 : 238,380.30 = 101,134.04 : x
  2. Step 2: Convert to fraction form
    172,798.40/238,380.30 = 101,134.04/x
  3. Step 3: Cross multiply
    172,798.40x = 238,380.30 × 101,134.04
  4. Step 4: Simplify right side
    172,798.40x = 24,108,362,795.41
  5. Step 5: Solve for x
    x = 24,108,362,795.41/172,798.40
  6. Step 6: Final answer
    x = 139,517.28

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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.