Finding the Fourth Proportional to 97,872.20, 135,756.59 and 94,515.56
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Solution
The fourth proportional to 97,872.20, 135,756.59 and 94,515.56 is: 131,100.66
Step by Step Solution
- Step 1: Write the proportion equation
97,872.20 : 135,756.59 = 94,515.56 : x - Step 2: Convert to fraction form
97,872.20/135,756.59 = 94,515.56/x - Step 3: Cross multiply
97,872.20x = 135,756.59 × 94,515.56 - Step 4: Simplify right side
97,872.20x = 12,831,110,127.54 - Step 5: Solve for x
x = 12,831,110,127.54/97,872.20 - Step 6: Final answer
x = 131,100.66
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.