Finding the Fourth Proportional to 149,129.02, 205,874.29 and 115,060.96
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Solution
The fourth proportional to 149,129.02, 205,874.29 and 115,060.96 is: 158,842.95
Step by Step Solution
- Step 1: Write the proportion equation
149,129.02 : 205,874.29 = 115,060.96 : x - Step 2: Convert to fraction form
149,129.02/205,874.29 = 115,060.96/x - Step 3: Cross multiply
149,129.02x = 205,874.29 × 115,060.96 - Step 4: Simplify right side
149,129.02x = 23,688,093,446.72 - Step 5: Solve for x
x = 23,688,093,446.72/149,129.02 - Step 6: Final answer
x = 158,842.95
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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.