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Finding the Fourth Proportional to 181,419.84, 250,357.76 and 100,845.28

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Solution

The fourth proportional to 181,419.84, 250,357.76 and 100,845.28 is: 139,165.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,419.84 : 250,357.76 = 100,845.28 : x
  2. Step 2: Convert to fraction form
    181,419.84/250,357.76 = 100,845.28/x
  3. Step 3: Cross multiply
    181,419.84x = 250,357.76 × 100,845.28
  4. Step 4: Simplify right side
    181,419.84x = 25,247,398,407.37
  5. Step 5: Solve for x
    x = 25,247,398,407.37/181,419.84
  6. Step 6: Final answer
    x = 139,165.59

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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.