Home / 414,419.94-621,630.13-130,109.23

Finding the Fourth Proportional to 414,419.94, 621,630.13 and 130,109.23

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Solution

The fourth proportional to 414,419.94, 621,630.13 and 130,109.23 is: 195,163.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,419.94 : 621,630.13 = 130,109.23 : x
  2. Step 2: Convert to fraction form
    414,419.94/621,630.13 = 130,109.23/x
  3. Step 3: Cross multiply
    414,419.94x = 621,630.13 × 130,109.23
  4. Step 4: Simplify right side
    414,419.94x = 80,879,815,679.75
  5. Step 5: Solve for x
    x = 80,879,815,679.75/414,419.94
  6. Step 6: Final answer
    x = 195,163.91

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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.