Home / 209,063.32-313,496.22-81,039.58

Finding the Fourth Proportional to 209,063.32, 313,496.22 and 81,039.58

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Solution

The fourth proportional to 209,063.32, 313,496.22 and 81,039.58 is: 121,521.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,063.32 : 313,496.22 = 81,039.58 : x
  2. Step 2: Convert to fraction form
    209,063.32/313,496.22 = 81,039.58/x
  3. Step 3: Cross multiply
    209,063.32x = 313,496.22 × 81,039.58
  4. Step 4: Simplify right side
    209,063.32x = 25,405,602,000.39
  5. Step 5: Solve for x
    x = 25,405,602,000.39/209,063.32
  6. Step 6: Final answer
    x = 121,521.09

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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.