Home / 193,746.80-290,620.20-127,391.60

Finding the Fourth Proportional to 193,746.80, 290,620.20 and 127,391.60

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Solution

The fourth proportional to 193,746.80, 290,620.20 and 127,391.60 is: 191,087.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,746.80 : 290,620.20 = 127,391.60 : x
  2. Step 2: Convert to fraction form
    193,746.80/290,620.20 = 127,391.60/x
  3. Step 3: Cross multiply
    193,746.80x = 290,620.20 × 127,391.60
  4. Step 4: Simplify right side
    193,746.80x = 37,022,572,270.32
  5. Step 5: Solve for x
    x = 37,022,572,270.32/193,746.80
  6. Step 6: Final answer
    x = 191,087.40

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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.