Home / 209,201.19-313,625.44-90,783.34

Finding the Fourth Proportional to 209,201.19, 313,625.44 and 90,783.34

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Solution

The fourth proportional to 209,201.19, 313,625.44 and 90,783.34 is: 136,098.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,201.19 : 313,625.44 = 90,783.34 : x
  2. Step 2: Convert to fraction form
    209,201.19/313,625.44 = 90,783.34/x
  3. Step 3: Cross multiply
    209,201.19x = 313,625.44 × 90,783.34
  4. Step 4: Simplify right side
    209,201.19x = 28,471,964,952.17
  5. Step 5: Solve for x
    x = 28,471,964,952.17/209,201.19
  6. Step 6: Final answer
    x = 136,098.48

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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.