Finding the Fourth Proportional to 97,884.70, 146,827.05 and 78,201.70
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Solution
The fourth proportional to 97,884.70, 146,827.05 and 78,201.70 is: 117,302.55
Step by Step Solution
- Step 1: Write the proportion equation
97,884.70 : 146,827.05 = 78,201.70 : x - Step 2: Convert to fraction form
97,884.70/146,827.05 = 78,201.70/x - Step 3: Cross multiply
97,884.70x = 146,827.05 × 78,201.70 - Step 4: Simplify right side
97,884.70x = 11,482,124,915.99 - Step 5: Solve for x
x = 11,482,124,915.99/97,884.70 - Step 6: Final answer
x = 117,302.55
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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.