Home / 183,447.20-274,911.60-127,978.40

Finding the Fourth Proportional to 183,447.20, 274,911.60 and 127,978.40

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Solution

The fourth proportional to 183,447.20, 274,911.60 and 127,978.40 is: 191,786.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,447.20 : 274,911.60 = 127,978.40 : x
  2. Step 2: Convert to fraction form
    183,447.20/274,911.60 = 127,978.40/x
  3. Step 3: Cross multiply
    183,447.20x = 274,911.60 × 127,978.40
  4. Step 4: Simplify right side
    183,447.20x = 35,182,746,709.44
  5. Step 5: Solve for x
    x = 35,182,746,709.44/183,447.20
  6. Step 6: Final answer
    x = 191,786.77

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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.