Finding the Fourth Proportional to 117,689.63, 176,612.20 and 55,364.99
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Solution
The fourth proportional to 117,689.63, 176,612.20 and 55,364.99 is: 83,084.06
Step by Step Solution
- Step 1: Write the proportion equation
117,689.63 : 176,612.20 = 55,364.99 : x - Step 2: Convert to fraction form
117,689.63/176,612.20 = 55,364.99/x - Step 3: Cross multiply
117,689.63x = 176,612.20 × 55,364.99 - Step 4: Simplify right side
117,689.63x = 9,778,131,665.40 - Step 5: Solve for x
x = 9,778,131,665.40/117,689.63 - Step 6: Final answer
x = 83,084.06
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.