Home / 145,452.20-200,699.58-80,912.92

Finding the Fourth Proportional to 145,452.20, 200,699.58 and 80,912.92

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Solution

The fourth proportional to 145,452.20, 200,699.58 and 80,912.92 is: 111,646.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,452.20 : 200,699.58 = 80,912.92 : x
  2. Step 2: Convert to fraction form
    145,452.20/200,699.58 = 80,912.92/x
  3. Step 3: Cross multiply
    145,452.20x = 200,699.58 × 80,912.92
  4. Step 4: Simplify right side
    145,452.20x = 16,239,189,060.57
  5. Step 5: Solve for x
    x = 16,239,189,060.57/145,452.20
  6. Step 6: Final answer
    x = 111,646.23

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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.