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Finding the Fourth Proportional to 143,622.92, 215,532.81 and 50,128.67

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Solution

The fourth proportional to 143,622.92, 215,532.81 and 50,128.67 is: 75,227.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,622.92 : 215,532.81 = 50,128.67 : x
  2. Step 2: Convert to fraction form
    143,622.92/215,532.81 = 50,128.67/x
  3. Step 3: Cross multiply
    143,622.92x = 215,532.81 × 50,128.67
  4. Step 4: Simplify right side
    143,622.92x = 10,804,373,106.66
  5. Step 5: Solve for x
    x = 10,804,373,106.66/143,622.92
  6. Step 6: Final answer
    x = 75,227.36

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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.