Home / 183,936.72-253,948.86-120,381.96

Finding the Fourth Proportional to 183,936.72, 253,948.86 and 120,381.96

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Solution

The fourth proportional to 183,936.72, 253,948.86 and 120,381.96 is: 166,203.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,936.72 : 253,948.86 = 120,381.96 : x
  2. Step 2: Convert to fraction form
    183,936.72/253,948.86 = 120,381.96/x
  3. Step 3: Cross multiply
    183,936.72x = 253,948.86 × 120,381.96
  4. Step 4: Simplify right side
    183,936.72x = 30,570,861,506.57
  5. Step 5: Solve for x
    x = 30,570,861,506.57/183,936.72
  6. Step 6: Final answer
    x = 166,203.15

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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.