Finding the Fourth Proportional to 129,910.63, 179,277.21 and 70,294.63
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Solution
The fourth proportional to 129,910.63, 179,277.21 and 70,294.63 is: 97,006.88
Step by Step Solution
- Step 1: Write the proportion equation
129,910.63 : 179,277.21 = 70,294.63 : x - Step 2: Convert to fraction form
129,910.63/179,277.21 = 70,294.63/x - Step 3: Cross multiply
129,910.63x = 179,277.21 × 70,294.63 - Step 4: Simplify right side
129,910.63x = 12,602,225,144.38 - Step 5: Solve for x
x = 12,602,225,144.38/129,910.63 - Step 6: Final answer
x = 97,006.88
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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.