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Finding the Fourth Proportional to 172,907.58, 238,672 and 101,310.78

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Solution

The fourth proportional to 172,907.58, 238,672 and 101,310.78 is: 139,843.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,907.58 : 238,672 = 101,310.78 : x
  2. Step 2: Convert to fraction form
    172,907.58/238,672 = 101,310.78/x
  3. Step 3: Cross multiply
    172,907.58x = 238,672 × 101,310.78
  4. Step 4: Simplify right side
    172,907.58x = 24,180,046,484.16
  5. Step 5: Solve for x
    x = 24,180,046,484.16/172,907.58
  6. Step 6: Final answer
    x = 139,843.76

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.