Home / 105,921.80-146,174.60-58,176.16

Finding the Fourth Proportional to 105,921.80, 146,174.60 and 58,176.16

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Solution

The fourth proportional to 105,921.80, 146,174.60 and 58,176.16 is: 80,284.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,921.80 : 146,174.60 = 58,176.16 : x
  2. Step 2: Convert to fraction form
    105,921.80/146,174.60 = 58,176.16/x
  3. Step 3: Cross multiply
    105,921.80x = 146,174.60 × 58,176.16
  4. Step 4: Simplify right side
    105,921.80x = 8,503,876,917.54
  5. Step 5: Solve for x
    x = 8,503,876,917.54/105,921.80
  6. Step 6: Final answer
    x = 80,284.48

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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.