Finding the Fourth Proportional to 137,546.06, 206,319.08 and 90,788.00
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Solution
The fourth proportional to 137,546.06, 206,319.08 and 90,788.00 is: 136,181.99
Step by Step Solution
- Step 1: Write the proportion equation
137,546.06 : 206,319.08 = 90,788.00 : x - Step 2: Convert to fraction form
137,546.06/206,319.08 = 90,788.00/x - Step 3: Cross multiply
137,546.06x = 206,319.08 × 90,788.00 - Step 4: Simplify right side
137,546.06x = 18,731,295,830.41 - Step 5: Solve for x
x = 18,731,295,830.41/137,546.06 - Step 6: Final answer
x = 136,181.99
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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.