Home / 203,556.33-280,941.36-112,941.45

Finding the Fourth Proportional to 203,556.33, 280,941.36 and 112,941.45

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Solution

The fourth proportional to 203,556.33, 280,941.36 and 112,941.45 is: 155,877.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,556.33 : 280,941.36 = 112,941.45 : x
  2. Step 2: Convert to fraction form
    203,556.33/280,941.36 = 112,941.45/x
  3. Step 3: Cross multiply
    203,556.33x = 280,941.36 × 112,941.45
  4. Step 4: Simplify right side
    203,556.33x = 31,729,924,563.37
  5. Step 5: Solve for x
    x = 31,729,924,563.37/203,556.33
  6. Step 6: Final answer
    x = 155,877.86

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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.