Home / 172,812.12-238,485.78-101,185.44

Finding the Fourth Proportional to 172,812.12, 238,485.78 and 101,185.44

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Solution

The fourth proportional to 172,812.12, 238,485.78 and 101,185.44 is: 139,638.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,812.12 : 238,485.78 = 101,185.44 : x
  2. Step 2: Convert to fraction form
    172,812.12/238,485.78 = 101,185.44/x
  3. Step 3: Cross multiply
    172,812.12x = 238,485.78 × 101,185.44
  4. Step 4: Simplify right side
    172,812.12x = 24,131,288,583.04
  5. Step 5: Solve for x
    x = 24,131,288,583.04/172,812.12
  6. Step 6: Final answer
    x = 139,638.87

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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.