Home / 140,961.20-211,441.80-107,783.60

Finding the Fourth Proportional to 140,961.20, 211,441.80 and 107,783.60

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Solution

The fourth proportional to 140,961.20, 211,441.80 and 107,783.60 is: 161,675.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,961.20 : 211,441.80 = 107,783.60 : x
  2. Step 2: Convert to fraction form
    140,961.20/211,441.80 = 107,783.60/x
  3. Step 3: Cross multiply
    140,961.20x = 211,441.80 × 107,783.60
  4. Step 4: Simplify right side
    140,961.20x = 22,789,958,394.48
  5. Step 5: Solve for x
    x = 22,789,958,394.48/140,961.20
  6. Step 6: Final answer
    x = 161,675.40

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1.5x scale

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.