Finding the Fourth Proportional to 79,343.96, 118,731.58 and 68,706.94
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Solution
The fourth proportional to 79,343.96, 118,731.58 and 68,706.94 is: 102,814.17
Step by Step Solution
- Step 1: Write the proportion equation
79,343.96 : 118,731.58 = 68,706.94 : x - Step 2: Convert to fraction form
79,343.96/118,731.58 = 68,706.94/x - Step 3: Cross multiply
79,343.96x = 118,731.58 × 68,706.94 - Step 4: Simplify right side
79,343.96x = 8,157,683,543.17 - Step 5: Solve for x
x = 8,157,683,543.17/79,343.96 - Step 6: Final answer
x = 102,814.17
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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.