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Finding the Fourth Proportional to 136,174.20, 203,969.70 and 112,846.20

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Solution

The fourth proportional to 136,174.20, 203,969.70 and 112,846.20 is: 169,027.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,174.20 : 203,969.70 = 112,846.20 : x
  2. Step 2: Convert to fraction form
    136,174.20/203,969.70 = 112,846.20/x
  3. Step 3: Cross multiply
    136,174.20x = 203,969.70 × 112,846.20
  4. Step 4: Simplify right side
    136,174.20x = 23,017,205,560.14
  5. Step 5: Solve for x
    x = 23,017,205,560.14/136,174.20
  6. Step 6: Final answer
    x = 169,027.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.