Home / 203,021.37-280,105.08-118,122.03

Finding the Fourth Proportional to 203,021.37, 280,105.08 and 118,122.03

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Solution

The fourth proportional to 203,021.37, 280,105.08 and 118,122.03 is: 162,970.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,021.37 : 280,105.08 = 118,122.03 : x
  2. Step 2: Convert to fraction form
    203,021.37/280,105.08 = 118,122.03/x
  3. Step 3: Cross multiply
    203,021.37x = 280,105.08 × 118,122.03
  4. Step 4: Simplify right side
    203,021.37x = 33,086,580,662.91
  5. Step 5: Solve for x
    x = 33,086,580,662.91/203,021.37
  6. Step 6: Final answer
    x = 162,970.93

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1.5x scale

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.