Home / 129,845.37-177,887.32-124,989.78

Finding the Fourth Proportional to 129,845.37, 177,887.32 and 124,989.78

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Solution

The fourth proportional to 129,845.37, 177,887.32 and 124,989.78 is: 171,235.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,845.37 : 177,887.32 = 124,989.78 : x
  2. Step 2: Convert to fraction form
    129,845.37/177,887.32 = 124,989.78/x
  3. Step 3: Cross multiply
    129,845.37x = 177,887.32 × 124,989.78
  4. Step 4: Simplify right side
    129,845.37x = 22,234,096,480.75
  5. Step 5: Solve for x
    x = 22,234,096,480.75/129,845.37
  6. Step 6: Final answer
    x = 171,235.19

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.