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Finding the Fourth Proportional to 161,505.53, 222,872.95 and 89,884.01

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Solution

The fourth proportional to 161,505.53, 222,872.95 and 89,884.01 is: 124,037.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,505.53 : 222,872.95 = 89,884.01 : x
  2. Step 2: Convert to fraction form
    161,505.53/222,872.95 = 89,884.01/x
  3. Step 3: Cross multiply
    161,505.53x = 222,872.95 × 89,884.01
  4. Step 4: Simplify right side
    161,505.53x = 20,032,715,136.07
  5. Step 5: Solve for x
    x = 20,032,715,136.07/161,505.53
  6. Step 6: Final answer
    x = 124,037.33

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Why These Related Problems?

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