Home / 105,922.78-146,176-58,177.16

Finding the Fourth Proportional to 105,922.78, 146,176 and 58,177.16

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Solution

The fourth proportional to 105,922.78, 146,176 and 58,177.16 is: 80,285.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,922.78 : 146,176 = 58,177.16 : x
  2. Step 2: Convert to fraction form
    105,922.78/146,176 = 58,177.16/x
  3. Step 3: Cross multiply
    105,922.78x = 146,176 × 58,177.16
  4. Step 4: Simplify right side
    105,922.78x = 8,504,104,540.16
  5. Step 5: Solve for x
    x = 8,504,104,540.16/105,922.78
  6. Step 6: Final answer
    x = 80,285.89

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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.