Home / 181,712.09-250,758.21-100,039.66

Finding the Fourth Proportional to 181,712.09, 250,758.21 and 100,039.66

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Solution

The fourth proportional to 181,712.09, 250,758.21 and 100,039.66 is: 138,052.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,712.09 : 250,758.21 = 100,039.66 : x
  2. Step 2: Convert to fraction form
    181,712.09/250,758.21 = 100,039.66/x
  3. Step 3: Cross multiply
    181,712.09x = 250,758.21 × 100,039.66
  4. Step 4: Simplify right side
    181,712.09x = 25,085,765,818.86
  5. Step 5: Solve for x
    x = 25,085,765,818.86/181,712.09
  6. Step 6: Final answer
    x = 138,052.26

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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.