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Finding the Fourth Proportional to 114,260.80, 171,391.20 and 80,435.20

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Solution

The fourth proportional to 114,260.80, 171,391.20 and 80,435.20 is: 120,652.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,260.80 : 171,391.20 = 80,435.20 : x
  2. Step 2: Convert to fraction form
    114,260.80/171,391.20 = 80,435.20/x
  3. Step 3: Cross multiply
    114,260.80x = 171,391.20 × 80,435.20
  4. Step 4: Simplify right side
    114,260.80x = 13,785,885,450.24
  5. Step 5: Solve for x
    x = 13,785,885,450.24/114,260.80
  6. Step 6: Final answer
    x = 120,652.80

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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.