Finding the Fourth Proportional to 97,063.52, 133,872.84 and 85,106.84
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Solution
The fourth proportional to 97,063.52, 133,872.84 and 85,106.84 is: 117,381.84
Step by Step Solution
- Step 1: Write the proportion equation
97,063.52 : 133,872.84 = 85,106.84 : x - Step 2: Convert to fraction form
97,063.52/133,872.84 = 85,106.84/x - Step 3: Cross multiply
97,063.52x = 133,872.84 × 85,106.84 - Step 4: Simplify right side
97,063.52x = 11,393,494,374.23 - Step 5: Solve for x
x = 11,393,494,374.23/97,063.52 - Step 6: Final answer
x = 117,381.84
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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.