Finding the Fourth Proportional to 159,861.84, 220,570.68 and 102,474.96
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Solution
The fourth proportional to 159,861.84, 220,570.68 and 102,474.96 is: 141,390.66
Step by Step Solution
- Step 1: Write the proportion equation
159,861.84 : 220,570.68 = 102,474.96 : x - Step 2: Convert to fraction form
159,861.84/220,570.68 = 102,474.96/x - Step 3: Cross multiply
159,861.84x = 220,570.68 × 102,474.96 - Step 4: Simplify right side
159,861.84x = 22,602,971,610.17 - Step 5: Solve for x
x = 22,602,971,610.17/159,861.84 - Step 6: Final answer
x = 141,390.66
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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.