Home / 185,390.56-278,107.44-67,117.60

Finding the Fourth Proportional to 185,390.56, 278,107.44 and 67,117.60

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Solution

The fourth proportional to 185,390.56, 278,107.44 and 67,117.60 is: 100,684.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,390.56 : 278,107.44 = 67,117.60 : x
  2. Step 2: Convert to fraction form
    185,390.56/278,107.44 = 67,117.60/x
  3. Step 3: Cross multiply
    185,390.56x = 278,107.44 × 67,117.60
  4. Step 4: Simplify right side
    185,390.56x = 18,665,902,188.82
  5. Step 5: Solve for x
    x = 18,665,902,188.82/185,390.56
  6. Step 6: Final answer
    x = 100,684.21

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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.