Finding the Fourth Proportional to 117,680.64, 176,584.32 and 91,438.08
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Solution
The fourth proportional to 117,680.64, 176,584.32 and 91,438.08 is: 137,206.35
Step by Step Solution
- Step 1: Write the proportion equation
117,680.64 : 176,584.32 = 91,438.08 : x - Step 2: Convert to fraction form
117,680.64/176,584.32 = 91,438.08/x - Step 3: Cross multiply
117,680.64x = 176,584.32 × 91,438.08 - Step 4: Simplify right side
117,680.64x = 16,146,531,178.91 - Step 5: Solve for x
x = 16,146,531,178.91/117,680.64 - Step 6: Final answer
x = 137,206.35
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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.