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Finding the Fourth Proportional to 181,531.53, 250,509.11 and 100,958.81

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Solution

The fourth proportional to 181,531.53, 250,509.11 and 100,958.81 is: 139,320.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,531.53 : 250,509.11 = 100,958.81 : x
  2. Step 2: Convert to fraction form
    181,531.53/250,509.11 = 100,958.81/x
  3. Step 3: Cross multiply
    181,531.53x = 250,509.11 × 100,958.81
  4. Step 4: Simplify right side
    181,531.53x = 25,291,099,882.42
  5. Step 5: Solve for x
    x = 25,291,099,882.42/181,531.53
  6. Step 6: Final answer
    x = 139,320.70

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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.