Home / 128,360.25-192,566.03-39,610.42

Finding the Fourth Proportional to 128,360.25, 192,566.03 and 39,610.42

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Solution

The fourth proportional to 128,360.25, 192,566.03 and 39,610.42 is: 59,423.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,360.25 : 192,566.03 = 39,610.42 : x
  2. Step 2: Convert to fraction form
    128,360.25/192,566.03 = 39,610.42/x
  3. Step 3: Cross multiply
    128,360.25x = 192,566.03 × 39,610.42
  4. Step 4: Simplify right side
    128,360.25x = 7,627,620,646.57
  5. Step 5: Solve for x
    x = 7,627,620,646.57/128,360.25
  6. Step 6: Final answer
    x = 59,423.54

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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.