Home / 143,840.10-215,760.15-50,355.30

Finding the Fourth Proportional to 143,840.10, 215,760.15 and 50,355.30

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Solution

The fourth proportional to 143,840.10, 215,760.15 and 50,355.30 is: 75,532.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,840.10 : 215,760.15 = 50,355.30 : x
  2. Step 2: Convert to fraction form
    143,840.10/215,760.15 = 50,355.30/x
  3. Step 3: Cross multiply
    143,840.10x = 215,760.15 × 50,355.30
  4. Step 4: Simplify right side
    143,840.10x = 10,864,667,081.30
  5. Step 5: Solve for x
    x = 10,864,667,081.30/143,840.10
  6. Step 6: Final answer
    x = 75,532.95

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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.