Home / 152,143.20-228,247.20-46,972.80

Finding the Fourth Proportional to 152,143.20, 228,247.20 and 46,972.80

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Solution

The fourth proportional to 152,143.20, 228,247.20 and 46,972.80 is: 70,469.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,143.20 : 228,247.20 = 46,972.80 : x
  2. Step 2: Convert to fraction form
    152,143.20/228,247.20 = 46,972.80/x
  3. Step 3: Cross multiply
    152,143.20x = 228,247.20 × 46,972.80
  4. Step 4: Simplify right side
    152,143.20x = 10,721,410,076.16
  5. Step 5: Solve for x
    x = 10,721,410,076.16/152,143.20
  6. Step 6: Final answer
    x = 70,469.20

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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.