Home / 128,454.85-192,665.26-58,318.03

Finding the Fourth Proportional to 128,454.85, 192,665.26 and 58,318.03

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Solution

The fourth proportional to 128,454.85, 192,665.26 and 58,318.03 is: 87,469.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,454.85 : 192,665.26 = 58,318.03 : x
  2. Step 2: Convert to fraction form
    128,454.85/192,665.26 = 58,318.03/x
  3. Step 3: Cross multiply
    128,454.85x = 192,665.26 × 58,318.03
  4. Step 4: Simplify right side
    128,454.85x = 11,235,858,412.64
  5. Step 5: Solve for x
    x = 11,235,858,412.64/128,454.85
  6. Step 6: Final answer
    x = 87,469.32

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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.