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Finding the Fourth Proportional to 181,851.90, 272,583.45 and 81,995.10

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Solution

The fourth proportional to 181,851.90, 272,583.45 and 81,995.10 is: 122,905.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,851.90 : 272,583.45 = 81,995.10 : x
  2. Step 2: Convert to fraction form
    181,851.90/272,583.45 = 81,995.10/x
  3. Step 3: Cross multiply
    181,851.90x = 272,583.45 × 81,995.10
  4. Step 4: Simplify right side
    181,851.90x = 22,350,507,241.10
  5. Step 5: Solve for x
    x = 22,350,507,241.10/181,851.90
  6. Step 6: Final answer
    x = 122,905.00

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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.