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Finding the Fourth Proportional to 181,546.60, 272,132.70 and 81,754.60

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Solution

The fourth proportional to 181,546.60, 272,132.70 and 81,754.60 is: 122,547.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,546.60 : 272,132.70 = 81,754.60 : x
  2. Step 2: Convert to fraction form
    181,546.60/272,132.70 = 81,754.60/x
  3. Step 3: Cross multiply
    181,546.60x = 272,132.70 × 81,754.60
  4. Step 4: Simplify right side
    181,546.60x = 22,248,100,035.42
  5. Step 5: Solve for x
    x = 22,248,100,035.42/181,546.60
  6. Step 6: Final answer
    x = 122,547.60

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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.