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Finding the Fourth Proportional to 140,039.80, 210,027.30 and 46,520.44

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Solution

The fourth proportional to 140,039.80, 210,027.30 and 46,520.44 is: 69,769.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,039.80 : 210,027.30 = 46,520.44 : x
  2. Step 2: Convert to fraction form
    140,039.80/210,027.30 = 46,520.44/x
  3. Step 3: Cross multiply
    140,039.80x = 210,027.30 × 46,520.44
  4. Step 4: Simplify right side
    140,039.80x = 9,770,562,408.01
  5. Step 5: Solve for x
    x = 9,770,562,408.01/140,039.80
  6. Step 6: Final answer
    x = 69,769.90

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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.