Finding the Fourth Proportional to 115,917.60, 173,487.60 and 101,920.80
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Solution
The fourth proportional to 115,917.60, 173,487.60 and 101,920.80 is: 152,539.35
Step by Step Solution
- Step 1: Write the proportion equation
115,917.60 : 173,487.60 = 101,920.80 : x - Step 2: Convert to fraction form
115,917.60/173,487.60 = 101,920.80/x - Step 3: Cross multiply
115,917.60x = 173,487.60 × 101,920.80 - Step 4: Simplify right side
115,917.60x = 17,681,994,982.08 - Step 5: Solve for x
x = 17,681,994,982.08/115,917.60 - Step 6: Final answer
x = 152,539.35
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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.