Finding the Fourth Proportional to 126,787.24, 174,969.08 and 69,428.98
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Solution
The fourth proportional to 126,787.24, 174,969.08 and 69,428.98 is: 95,813.46
Step by Step Solution
- Step 1: Write the proportion equation
126,787.24 : 174,969.08 = 69,428.98 : x - Step 2: Convert to fraction form
126,787.24/174,969.08 = 69,428.98/x - Step 3: Cross multiply
126,787.24x = 174,969.08 × 69,428.98 - Step 4: Simplify right side
126,787.24x = 12,147,924,755.94 - Step 5: Solve for x
x = 12,147,924,755.94/126,787.24 - Step 6: Final answer
x = 95,813.46
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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.