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Finding the Fourth Proportional to 181,303.79, 271,862.26 and 81,378.37

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Solution

The fourth proportional to 181,303.79, 271,862.26 and 81,378.37 is: 122,025.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,303.79 : 271,862.26 = 81,378.37 : x
  2. Step 2: Convert to fraction form
    181,303.79/271,862.26 = 81,378.37/x
  3. Step 3: Cross multiply
    181,303.79x = 271,862.26 × 81,378.37
  4. Step 4: Simplify right side
    181,303.79x = 22,123,707,719.70
  5. Step 5: Solve for x
    x = 22,123,707,719.70/181,303.79
  6. Step 6: Final answer
    x = 122,025.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.