Home / 234,907.18-324,168.40-138,121.96

Finding the Fourth Proportional to 234,907.18, 324,168.40 and 138,121.96

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Solution

The fourth proportional to 234,907.18, 324,168.40 and 138,121.96 is: 190,606.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,907.18 : 324,168.40 = 138,121.96 : x
  2. Step 2: Convert to fraction form
    234,907.18/324,168.40 = 138,121.96/x
  3. Step 3: Cross multiply
    234,907.18x = 324,168.40 × 138,121.96
  4. Step 4: Simplify right side
    234,907.18x = 44,774,774,778.06
  5. Step 5: Solve for x
    x = 44,774,774,778.06/234,907.18
  6. Step 6: Final answer
    x = 190,606.24

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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.