Home / 149,496.20-206,303.64-81,514.34

Finding the Fourth Proportional to 149,496.20, 206,303.64 and 81,514.34

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Solution

The fourth proportional to 149,496.20, 206,303.64 and 81,514.34 is: 112,489.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,496.20 : 206,303.64 = 81,514.34 : x
  2. Step 2: Convert to fraction form
    149,496.20/206,303.64 = 81,514.34/x
  3. Step 3: Cross multiply
    149,496.20x = 206,303.64 × 81,514.34
  4. Step 4: Simplify right side
    149,496.20x = 16,816,705,054.20
  5. Step 5: Solve for x
    x = 16,816,705,054.20/149,496.20
  6. Step 6: Final answer
    x = 112,489.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.