Home / 193,890.80-290,836.20-127,535.60

Finding the Fourth Proportional to 193,890.80, 290,836.20 and 127,535.60

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Solution

The fourth proportional to 193,890.80, 290,836.20 and 127,535.60 is: 191,303.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,890.80 : 290,836.20 = 127,535.60 : x
  2. Step 2: Convert to fraction form
    193,890.80/290,836.20 = 127,535.60/x
  3. Step 3: Cross multiply
    193,890.80x = 290,836.20 × 127,535.60
  4. Step 4: Simplify right side
    193,890.80x = 37,091,969,268.72
  5. Step 5: Solve for x
    x = 37,091,969,268.72/193,890.80
  6. Step 6: Final answer
    x = 191,303.40

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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.