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Finding the Fourth Proportional to 181,959.81, 251,101.18 and 101,385.60

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Solution

The fourth proportional to 181,959.81, 251,101.18 and 101,385.60 is: 139,910.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,959.81 : 251,101.18 = 101,385.60 : x
  2. Step 2: Convert to fraction form
    181,959.81/251,101.18 = 101,385.60/x
  3. Step 3: Cross multiply
    181,959.81x = 251,101.18 × 101,385.60
  4. Step 4: Simplify right side
    181,959.81x = 25,458,043,795.01
  5. Step 5: Solve for x
    x = 25,458,043,795.01/181,959.81
  6. Step 6: Final answer
    x = 139,910.26

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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.