Home / 107,042.80-160,564.20-71,791.60

Finding the Fourth Proportional to 107,042.80, 160,564.20 and 71,791.60

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Solution

The fourth proportional to 107,042.80, 160,564.20 and 71,791.60 is: 107,687.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,042.80 : 160,564.20 = 71,791.60 : x
  2. Step 2: Convert to fraction form
    107,042.80/160,564.20 = 71,791.60/x
  3. Step 3: Cross multiply
    107,042.80x = 160,564.20 × 71,791.60
  4. Step 4: Simplify right side
    107,042.80x = 11,527,160,820.72
  5. Step 5: Solve for x
    x = 11,527,160,820.72/107,042.80
  6. Step 6: Final answer
    x = 107,687.40

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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.