Finding the Fourth Proportional to 117,972.96, 162,838.26 and 80,269.08
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Solution
The fourth proportional to 117,972.96, 162,838.26 and 80,269.08 is: 110,795.54
Step by Step Solution
- Step 1: Write the proportion equation
117,972.96 : 162,838.26 = 80,269.08 : x - Step 2: Convert to fraction form
117,972.96/162,838.26 = 80,269.08/x - Step 3: Cross multiply
117,972.96x = 162,838.26 × 80,269.08 - Step 4: Simplify right side
117,972.96x = 13,070,877,319.00 - Step 5: Solve for x
x = 13,070,877,319.00/117,972.96 - Step 6: Final answer
x = 110,795.54
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1.5x scale
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.