Home / 136,051.12-204,128.52-122,857.84

Finding the Fourth Proportional to 136,051.12, 204,128.52 and 122,857.84

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Solution

The fourth proportional to 136,051.12, 204,128.52 and 122,857.84 is: 184,333.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,051.12 : 204,128.52 = 122,857.84 : x
  2. Step 2: Convert to fraction form
    136,051.12/204,128.52 = 122,857.84/x
  3. Step 3: Cross multiply
    136,051.12x = 204,128.52 × 122,857.84
  4. Step 4: Simplify right side
    136,051.12x = 25,078,789,049.60
  5. Step 5: Solve for x
    x = 25,078,789,049.60/136,051.12
  6. Step 6: Final answer
    x = 184,333.57

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.