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Finding the Fourth Proportional to 161,235.40, 222,604.42 and 103,894.96

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Solution

The fourth proportional to 161,235.40, 222,604.42 and 103,894.96 is: 143,439.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,235.40 : 222,604.42 = 103,894.96 : x
  2. Step 2: Convert to fraction form
    161,235.40/222,604.42 = 103,894.96/x
  3. Step 3: Cross multiply
    161,235.40x = 222,604.42 × 103,894.96
  4. Step 4: Simplify right side
    161,235.40x = 23,127,477,311.72
  5. Step 5: Solve for x
    x = 23,127,477,311.72/161,235.40
  6. Step 6: Final answer
    x = 143,439.20

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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.