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Finding the Fourth Proportional to 114,640.40, 171,960.60 and 102,830.60

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Solution

The fourth proportional to 114,640.40, 171,960.60 and 102,830.60 is: 154,245.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,640.40 : 171,960.60 = 102,830.60 : x
  2. Step 2: Convert to fraction form
    114,640.40/171,960.60 = 102,830.60/x
  3. Step 3: Cross multiply
    114,640.40x = 171,960.60 × 102,830.60
  4. Step 4: Simplify right side
    114,640.40x = 17,682,811,674.36
  5. Step 5: Solve for x
    x = 17,682,811,674.36/114,640.40
  6. Step 6: Final answer
    x = 154,245.90

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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.