Home / 143,629.20-215,310.96-73,353.60

Finding the Fourth Proportional to 143,629.20, 215,310.96 and 73,353.60

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Solution

The fourth proportional to 143,629.20, 215,310.96 and 73,353.60 is: 109,962.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,629.20 : 215,310.96 = 73,353.60 : x
  2. Step 2: Convert to fraction form
    143,629.20/215,310.96 = 73,353.60/x
  3. Step 3: Cross multiply
    143,629.20x = 215,310.96 × 73,353.60
  4. Step 4: Simplify right side
    143,629.20x = 15,793,834,035.46
  5. Step 5: Solve for x
    x = 15,793,834,035.46/143,629.20
  6. Step 6: Final answer
    x = 109,962.56

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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.