Home / 128,911.80-193,321.37-44,649.29

Finding the Fourth Proportional to 128,911.80, 193,321.37 and 44,649.29

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Solution

The fourth proportional to 128,911.80, 193,321.37 and 44,649.29 is: 66,957.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,911.80 : 193,321.37 = 44,649.29 : x
  2. Step 2: Convert to fraction form
    128,911.80/193,321.37 = 44,649.29/x
  3. Step 3: Cross multiply
    128,911.80x = 193,321.37 × 44,649.29
  4. Step 4: Simplify right side
    128,911.80x = 8,631,660,722.47
  5. Step 5: Solve for x
    x = 8,631,660,722.47/128,911.80
  6. Step 6: Final answer
    x = 66,957.88

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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.