Home / 146,995.11-220,480.70-47,128.41

Finding the Fourth Proportional to 146,995.11, 220,480.70 and 47,128.41

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Solution

The fourth proportional to 146,995.11, 220,480.70 and 47,128.41 is: 70,688.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,995.11 : 220,480.70 = 47,128.41 : x
  2. Step 2: Convert to fraction form
    146,995.11/220,480.70 = 47,128.41/x
  3. Step 3: Cross multiply
    146,995.11x = 220,480.70 × 47,128.41
  4. Step 4: Simplify right side
    146,995.11x = 10,390,904,591.05
  5. Step 5: Solve for x
    x = 10,390,904,591.05/146,995.11
  6. Step 6: Final answer
    x = 70,688.78

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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.