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Finding the Fourth Proportional to 181,919.46, 251,030.97 and 101,343.90

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Solution

The fourth proportional to 181,919.46, 251,030.97 and 101,343.90 is: 139,844.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,919.46 : 251,030.97 = 101,343.90 : x
  2. Step 2: Convert to fraction form
    181,919.46/251,030.97 = 101,343.90/x
  3. Step 3: Cross multiply
    181,919.46x = 251,030.97 × 101,343.90
  4. Step 4: Simplify right side
    181,919.46x = 25,440,457,520.58
  5. Step 5: Solve for x
    x = 25,440,457,520.58/181,919.46
  6. Step 6: Final answer
    x = 139,844.62

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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.