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Finding the Fourth Proportional to 161,361.67, 222,685.25 and 89,746.87

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Solution

The fourth proportional to 161,361.67, 222,685.25 and 89,746.87 is: 123,854.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,361.67 : 222,685.25 = 89,746.87 : x
  2. Step 2: Convert to fraction form
    161,361.67/222,685.25 = 89,746.87/x
  3. Step 3: Cross multiply
    161,361.67x = 222,685.25 × 89,746.87
  4. Step 4: Simplify right side
    161,361.67x = 19,985,303,177.22
  5. Step 5: Solve for x
    x = 19,985,303,177.22/161,361.67
  6. Step 6: Final answer
    x = 123,854.09

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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.