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Finding the Fourth Proportional to 136,066.34, 187,775.61 and 82,361.18

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Solution

The fourth proportional to 136,066.34, 187,775.61 and 82,361.18 is: 113,660.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,066.34 : 187,775.61 = 82,361.18 : x
  2. Step 2: Convert to fraction form
    136,066.34/187,775.61 = 82,361.18/x
  3. Step 3: Cross multiply
    136,066.34x = 187,775.61 × 82,361.18
  4. Step 4: Simplify right side
    136,066.34x = 15,465,420,814.82
  5. Step 5: Solve for x
    x = 15,465,420,814.82/136,066.34
  6. Step 6: Final answer
    x = 113,660.89

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.