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Finding the Fourth Proportional to 181,299.95, 271,873.02 and 86,420.37

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Solution

The fourth proportional to 181,299.95, 271,873.02 and 86,420.37 is: 129,593.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,299.95 : 271,873.02 = 86,420.37 : x
  2. Step 2: Convert to fraction form
    181,299.95/271,873.02 = 86,420.37/x
  3. Step 3: Cross multiply
    181,299.95x = 271,873.02 × 86,420.37
  4. Step 4: Simplify right side
    181,299.95x = 23,495,366,981.42
  5. Step 5: Solve for x
    x = 23,495,366,981.42/181,299.95
  6. Step 6: Final answer
    x = 129,593.90

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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.