Home / 136,680.21-188,618.90-76,249.22

Finding the Fourth Proportional to 136,680.21, 188,618.90 and 76,249.22

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Solution

The fourth proportional to 136,680.21, 188,618.90 and 76,249.22 is: 105,224.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,680.21 : 188,618.90 = 76,249.22 : x
  2. Step 2: Convert to fraction form
    136,680.21/188,618.90 = 76,249.22/x
  3. Step 3: Cross multiply
    136,680.21x = 188,618.90 × 76,249.22
  4. Step 4: Simplify right side
    136,680.21x = 14,382,042,677.92
  5. Step 5: Solve for x
    x = 14,382,042,677.92/136,680.21
  6. Step 6: Final answer
    x = 105,224.03

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1.5x scale

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.