Home / 203,039.40-280,100.52-131,442.60

Finding the Fourth Proportional to 203,039.40, 280,100.52 and 131,442.60

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Solution

The fourth proportional to 203,039.40, 280,100.52 and 131,442.60 is: 181,330.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,039.40 : 280,100.52 = 131,442.60 : x
  2. Step 2: Convert to fraction form
    203,039.40/280,100.52 = 131,442.60/x
  3. Step 3: Cross multiply
    203,039.40x = 280,100.52 × 131,442.60
  4. Step 4: Simplify right side
    203,039.40x = 36,817,140,610.15
  5. Step 5: Solve for x
    x = 36,817,140,610.15/203,039.40
  6. Step 6: Final answer
    x = 181,330.03

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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.