Finding the Fourth Proportional to 106,663.43, 147,176.29 and 68,915.81
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Solution
The fourth proportional to 106,663.43, 147,176.29 and 68,915.81 is: 95,091.39
Step by Step Solution
- Step 1: Write the proportion equation
106,663.43 : 147,176.29 = 68,915.81 : x - Step 2: Convert to fraction form
106,663.43/147,176.29 = 68,915.81/x - Step 3: Cross multiply
106,663.43x = 147,176.29 × 68,915.81 - Step 4: Simplify right side
106,663.43x = 10,142,773,692.23 - Step 5: Solve for x
x = 10,142,773,692.23/106,663.43 - Step 6: Final answer
x = 95,091.39
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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.