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Finding the Fourth Proportional to 181,184.40, 271,721.23 and 86,364.63

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Solution

The fourth proportional to 181,184.40, 271,721.23 and 86,364.63 is: 129,520.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,184.40 : 271,721.23 = 86,364.63 : x
  2. Step 2: Convert to fraction form
    181,184.40/271,721.23 = 86,364.63/x
  3. Step 3: Cross multiply
    181,184.40x = 271,721.23 × 86,364.63
  4. Step 4: Simplify right side
    181,184.40x = 23,467,103,492.09
  5. Step 5: Solve for x
    x = 23,467,103,492.09/181,184.40
  6. Step 6: Final answer
    x = 129,520.55

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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.