Home / 209,261.04-313,847.28-68,986.32

Finding the Fourth Proportional to 209,261.04, 313,847.28 and 68,986.32

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Solution

The fourth proportional to 209,261.04, 313,847.28 and 68,986.32 is: 103,464.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,261.04 : 313,847.28 = 68,986.32 : x
  2. Step 2: Convert to fraction form
    209,261.04/313,847.28 = 68,986.32/x
  3. Step 3: Cross multiply
    209,261.04x = 313,847.28 × 68,986.32
  4. Step 4: Simplify right side
    209,261.04x = 21,651,168,889.21
  5. Step 5: Solve for x
    x = 21,651,168,889.21/209,261.04
  6. Step 6: Final answer
    x = 103,464.88

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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.