Home / 190,370.80-285,556.20-50,143.60

Finding the Fourth Proportional to 190,370.80, 285,556.20 and 50,143.60

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Solution

The fourth proportional to 190,370.80, 285,556.20 and 50,143.60 is: 75,215.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,370.80 : 285,556.20 = 50,143.60 : x
  2. Step 2: Convert to fraction form
    190,370.80/285,556.20 = 50,143.60/x
  3. Step 3: Cross multiply
    190,370.80x = 285,556.20 × 50,143.60
  4. Step 4: Simplify right side
    190,370.80x = 14,318,815,870.32
  5. Step 5: Solve for x
    x = 14,318,815,870.32/190,370.80
  6. Step 6: Final answer
    x = 75,215.40

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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.