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Finding the Fourth Proportional to 181,903.10, 251,033.84 and 101,330.61

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Solution

The fourth proportional to 181,903.10, 251,033.84 and 101,330.61 is: 139,840.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,903.10 : 251,033.84 = 101,330.61 : x
  2. Step 2: Convert to fraction form
    181,903.10/251,033.84 = 101,330.61/x
  3. Step 3: Cross multiply
    181,903.10x = 251,033.84 × 101,330.61
  4. Step 4: Simplify right side
    181,903.10x = 25,437,412,137.84
  5. Step 5: Solve for x
    x = 25,437,412,137.84/181,903.10
  6. Step 6: Final answer
    x = 139,840.45

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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.