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Finding the Fourth Proportional to 161,433.70, 222,778.51 and 89,813.70

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Solution

The fourth proportional to 161,433.70, 222,778.51 and 89,813.70 is: 123,942.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,433.70 : 222,778.51 = 89,813.70 : x
  2. Step 2: Convert to fraction form
    161,433.70/222,778.51 = 89,813.70/x
  3. Step 3: Cross multiply
    161,433.70x = 222,778.51 × 89,813.70
  4. Step 4: Simplify right side
    161,433.70x = 20,008,562,263.59
  5. Step 5: Solve for x
    x = 20,008,562,263.59/161,433.70
  6. Step 6: Final answer
    x = 123,942.91

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1.5x scale

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.