Finding the Fourth Proportional to 116,470.08, 160,728.84 and 66,178.80
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Solution
The fourth proportional to 116,470.08, 160,728.84 and 66,178.80 is: 91,326.82
Step by Step Solution
- Step 1: Write the proportion equation
116,470.08 : 160,728.84 = 66,178.80 : x - Step 2: Convert to fraction form
116,470.08/160,728.84 = 66,178.80/x - Step 3: Cross multiply
116,470.08x = 160,728.84 × 66,178.80 - Step 4: Simplify right side
116,470.08x = 10,636,841,756.59 - Step 5: Solve for x
x = 10,636,841,756.59/116,470.08 - Step 6: Final answer
x = 91,326.82
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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.