Home / 147,640.77-221,490.30-54,147.33

Finding the Fourth Proportional to 147,640.77, 221,490.30 and 54,147.33

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Solution

The fourth proportional to 147,640.77, 221,490.30 and 54,147.33 is: 81,231.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,640.77 : 221,490.30 = 54,147.33 : x
  2. Step 2: Convert to fraction form
    147,640.77/221,490.30 = 54,147.33/x
  3. Step 3: Cross multiply
    147,640.77x = 221,490.30 × 54,147.33
  4. Step 4: Simplify right side
    147,640.77x = 11,993,108,365.90
  5. Step 5: Solve for x
    x = 11,993,108,365.90/147,640.77
  6. Step 6: Final answer
    x = 81,231.68

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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.