Finding the Fourth Proportional to 135,617.80, 203,426.70 and 37,121.80
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Solution
The fourth proportional to 135,617.80, 203,426.70 and 37,121.80 is: 55,682.70
Step by Step Solution
- Step 1: Write the proportion equation
135,617.80 : 203,426.70 = 37,121.80 : x - Step 2: Convert to fraction form
135,617.80/203,426.70 = 37,121.80/x - Step 3: Cross multiply
135,617.80x = 203,426.70 × 37,121.80 - Step 4: Simplify right side
135,617.80x = 7,551,565,272.06 - Step 5: Solve for x
x = 7,551,565,272.06/135,617.80 - Step 6: Final answer
x = 55,682.70
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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.