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Finding the Fourth Proportional to 181,235.60, 271,631.28 and 81,370.16

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Solution

The fourth proportional to 181,235.60, 271,631.28 and 81,370.16 is: 121,955.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,235.60 : 271,631.28 = 81,370.16 : x
  2. Step 2: Convert to fraction form
    181,235.60/271,631.28 = 81,370.16/x
  3. Step 3: Cross multiply
    181,235.60x = 271,631.28 × 81,370.16
  4. Step 4: Simplify right side
    181,235.60x = 22,102,680,714.60
  5. Step 5: Solve for x
    x = 22,102,680,714.60/181,235.60
  6. Step 6: Final answer
    x = 121,955.51

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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.