Home / 211,143.96-291,297.60-120,504.96

Finding the Fourth Proportional to 211,143.96, 291,297.60 and 120,504.96

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Solution

The fourth proportional to 211,143.96, 291,297.60 and 120,504.96 is: 166,250.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,143.96 : 291,297.60 = 120,504.96 : x
  2. Step 2: Convert to fraction form
    211,143.96/291,297.60 = 120,504.96/x
  3. Step 3: Cross multiply
    211,143.96x = 291,297.60 × 120,504.96
  4. Step 4: Simplify right side
    211,143.96x = 35,102,805,636.10
  5. Step 5: Solve for x
    x = 35,102,805,636.10/211,143.96
  6. Step 6: Final answer
    x = 166,250.58

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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.