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Finding the Fourth Proportional to 161,932.79, 242,573.89 and 80,634.89

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Solution

The fourth proportional to 161,932.79, 242,573.89 and 80,634.89 is: 120,790.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,932.79 : 242,573.89 = 80,634.89 : x
  2. Step 2: Convert to fraction form
    161,932.79/242,573.89 = 80,634.89/x
  3. Step 3: Cross multiply
    161,932.79x = 242,573.89 × 80,634.89
  4. Step 4: Simplify right side
    161,932.79x = 19,559,919,341.87
  5. Step 5: Solve for x
    x = 19,559,919,341.87/161,932.79
  6. Step 6: Final answer
    x = 120,790.35

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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.