Home / 130,485.20-195,727.80-67,499.60

Finding the Fourth Proportional to 130,485.20, 195,727.80 and 67,499.60

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Solution

The fourth proportional to 130,485.20, 195,727.80 and 67,499.60 is: 101,249.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,485.20 : 195,727.80 = 67,499.60 : x
  2. Step 2: Convert to fraction form
    130,485.20/195,727.80 = 67,499.60/x
  3. Step 3: Cross multiply
    130,485.20x = 195,727.80 × 67,499.60
  4. Step 4: Simplify right side
    130,485.20x = 13,211,548,208.88
  5. Step 5: Solve for x
    x = 13,211,548,208.88/130,485.20
  6. Step 6: Final answer
    x = 101,249.40

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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.