Home / 70,114.12-105,155.26-20,183.04

Finding the Fourth Proportional to 70,114.12, 105,155.26 and 20,183.04

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Solution

The fourth proportional to 70,114.12, 105,155.26 and 20,183.04 is: 30,269.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,114.12 : 105,155.26 = 20,183.04 : x
  2. Step 2: Convert to fraction form
    70,114.12/105,155.26 = 20,183.04/x
  3. Step 3: Cross multiply
    70,114.12x = 105,155.26 × 20,183.04
  4. Step 4: Simplify right side
    70,114.12x = 2,122,352,818.79
  5. Step 5: Solve for x
    x = 2,122,352,818.79/70,114.12
  6. Step 6: Final answer
    x = 30,269.98

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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.