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Finding the Fourth Proportional to 181,863.03, 250,978.77 and 101,290.58

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Solution

The fourth proportional to 181,863.03, 250,978.77 and 101,290.58 is: 139,785.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,863.03 : 250,978.77 = 101,290.58 : x
  2. Step 2: Convert to fraction form
    181,863.03/250,978.77 = 101,290.58/x
  3. Step 3: Cross multiply
    181,863.03x = 250,978.77 × 101,290.58
  4. Step 4: Simplify right side
    181,863.03x = 25,421,783,926.09
  5. Step 5: Solve for x
    x = 25,421,783,926.09/181,863.03
  6. Step 6: Final answer
    x = 139,785.33

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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.