Finding the Fourth Proportional to 105,612.74, 158,179.75 and 74,163.68
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Solution
The fourth proportional to 105,612.74, 158,179.75 and 74,163.68 is: 111,077.43
Step by Step Solution
- Step 1: Write the proportion equation
105,612.74 : 158,179.75 = 74,163.68 : x - Step 2: Convert to fraction form
105,612.74/158,179.75 = 74,163.68/x - Step 3: Cross multiply
105,612.74x = 158,179.75 × 74,163.68 - Step 4: Simplify right side
105,612.74x = 11,731,191,385.17 - Step 5: Solve for x
x = 11,731,191,385.17/105,612.74 - Step 6: Final answer
x = 111,077.43
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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.