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Finding the Fourth Proportional to 117,361.74, 161,897.22 and 72,048.72

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Solution

The fourth proportional to 117,361.74, 161,897.22 and 72,048.72 is: 99,389.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,361.74 : 161,897.22 = 72,048.72 : x
  2. Step 2: Convert to fraction form
    117,361.74/161,897.22 = 72,048.72/x
  3. Step 3: Cross multiply
    117,361.74x = 161,897.22 × 72,048.72
  4. Step 4: Simplify right side
    117,361.74x = 11,664,487,472.56
  5. Step 5: Solve for x
    x = 11,664,487,472.56/117,361.74
  6. Step 6: Final answer
    x = 99,389.18

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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.