Finding the Fourth Proportional to 97,142.96, 134,053.68 and 54,121.44
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Solution
The fourth proportional to 97,142.96, 134,053.68 and 54,121.44 is: 74,685.58
Step by Step Solution
- Step 1: Write the proportion equation
97,142.96 : 134,053.68 = 54,121.44 : x - Step 2: Convert to fraction form
97,142.96/134,053.68 = 54,121.44/x - Step 3: Cross multiply
97,142.96x = 134,053.68 × 54,121.44 - Step 4: Simplify right side
97,142.96x = 7,255,178,198.90 - Step 5: Solve for x
x = 7,255,178,198.90/97,142.96 - Step 6: Final answer
x = 74,685.58
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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.