Home / 130,016.80-195,025.20-109,021.60

Finding the Fourth Proportional to 130,016.80, 195,025.20 and 109,021.60

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Solution

The fourth proportional to 130,016.80, 195,025.20 and 109,021.60 is: 163,532.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,016.80 : 195,025.20 = 109,021.60 : x
  2. Step 2: Convert to fraction form
    130,016.80/195,025.20 = 109,021.60/x
  3. Step 3: Cross multiply
    130,016.80x = 195,025.20 × 109,021.60
  4. Step 4: Simplify right side
    130,016.80x = 21,261,959,344.32
  5. Step 5: Solve for x
    x = 21,261,959,344.32/130,016.80
  6. Step 6: Final answer
    x = 163,532.40

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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.