Home / 181,431.27-250,356.09-100,845.78

Finding the Fourth Proportional to 181,431.27, 250,356.09 and 100,845.78

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Solution

The fourth proportional to 181,431.27, 250,356.09 and 100,845.78 is: 139,156.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,431.27 : 250,356.09 = 100,845.78 : x
  2. Step 2: Convert to fraction form
    181,431.27/250,356.09 = 100,845.78/x
  3. Step 3: Cross multiply
    181,431.27x = 250,356.09 × 100,845.78
  4. Step 4: Simplify right side
    181,431.27x = 25,247,355,173.80
  5. Step 5: Solve for x
    x = 25,247,355,173.80/181,431.27
  6. Step 6: Final answer
    x = 139,156.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.