Home / 107,200.80-160,768.96-67,280.32

Finding the Fourth Proportional to 107,200.80, 160,768.96 and 67,280.32

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Solution

The fourth proportional to 107,200.80, 160,768.96 and 67,280.32 is: 100,900.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,200.80 : 160,768.96 = 67,280.32 : x
  2. Step 2: Convert to fraction form
    107,200.80/160,768.96 = 67,280.32/x
  3. Step 3: Cross multiply
    107,200.80x = 160,768.96 × 67,280.32
  4. Step 4: Simplify right side
    107,200.80x = 10,816,587,074.87
  5. Step 5: Solve for x
    x = 10,816,587,074.87/107,200.80
  6. Step 6: Final answer
    x = 100,900.25

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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.