Finding the Fourth Proportional to 168,618.75, 252,895.67 and 78,636.76
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Solution
The fourth proportional to 168,618.75, 252,895.67 and 78,636.76 is: 117,940.00
Step by Step Solution
- Step 1: Write the proportion equation
168,618.75 : 252,895.67 = 78,636.76 : x - Step 2: Convert to fraction form
168,618.75/252,895.67 = 78,636.76/x - Step 3: Cross multiply
168,618.75x = 252,895.67 × 78,636.76 - Step 4: Simplify right side
168,618.75x = 19,886,895,376.29 - Step 5: Solve for x
x = 19,886,895,376.29/168,618.75 - Step 6: Final answer
x = 117,940.00
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.