Home / 210,366.20-315,452.10-91,976.60

Finding the Fourth Proportional to 210,366.20, 315,452.10 and 91,976.60

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Solution

The fourth proportional to 210,366.20, 315,452.10 and 91,976.60 is: 137,922.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,366.20 : 315,452.10 = 91,976.60 : x
  2. Step 2: Convert to fraction form
    210,366.20/315,452.10 = 91,976.60/x
  3. Step 3: Cross multiply
    210,366.20x = 315,452.10 × 91,976.60
  4. Step 4: Simplify right side
    210,366.20x = 29,014,211,620.86
  5. Step 5: Solve for x
    x = 29,014,211,620.86/210,366.20
  6. Step 6: Final answer
    x = 137,922.40

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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.