Home / 152,500.20-228,532.36-85,801

Finding the Fourth Proportional to 152,500.20, 228,532.36 and 85,801

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Solution

The fourth proportional to 152,500.20, 228,532.36 and 85,801 is: 128,578.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,500.20 : 228,532.36 = 85,801 : x
  2. Step 2: Convert to fraction form
    152,500.20/228,532.36 = 85,801/x
  3. Step 3: Cross multiply
    152,500.20x = 228,532.36 × 85,801
  4. Step 4: Simplify right side
    152,500.20x = 19,608,305,020.36
  5. Step 5: Solve for x
    x = 19,608,305,020.36/152,500.20
  6. Step 6: Final answer
    x = 128,578.88

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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.