Home / 209,150.72-313,764.96-68,914.88

Finding the Fourth Proportional to 209,150.72, 313,764.96 and 68,914.88

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Solution

The fourth proportional to 209,150.72, 313,764.96 and 68,914.88 is: 103,385.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,150.72 : 313,764.96 = 68,914.88 : x
  2. Step 2: Convert to fraction form
    209,150.72/313,764.96 = 68,914.88/x
  3. Step 3: Cross multiply
    209,150.72x = 313,764.96 × 68,914.88
  4. Step 4: Simplify right side
    209,150.72x = 21,623,074,566.60
  5. Step 5: Solve for x
    x = 21,623,074,566.60/209,150.72
  6. Step 6: Final answer
    x = 103,385.13

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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.