Home / 128,426.01-192,640.34-57,352.27

Finding the Fourth Proportional to 128,426.01, 192,640.34 and 57,352.27

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Solution

The fourth proportional to 128,426.01, 192,640.34 and 57,352.27 is: 86,028.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,426.01 : 192,640.34 = 57,352.27 : x
  2. Step 2: Convert to fraction form
    128,426.01/192,640.34 = 57,352.27/x
  3. Step 3: Cross multiply
    128,426.01x = 192,640.34 × 57,352.27
  4. Step 4: Simplify right side
    128,426.01x = 11,048,360,815.55
  5. Step 5: Solve for x
    x = 11,048,360,815.55/128,426.01
  6. Step 6: Final answer
    x = 86,028.99

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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.