Finding the Fourth Proportional to 118,979.63, 178,627.84 and 69,095.53
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Solution
The fourth proportional to 118,979.63, 178,627.84 and 69,095.53 is: 103,735.28
Step by Step Solution
- Step 1: Write the proportion equation
118,979.63 : 178,627.84 = 69,095.53 : x - Step 2: Convert to fraction form
118,979.63/178,627.84 = 69,095.53/x - Step 3: Cross multiply
118,979.63x = 178,627.84 × 69,095.53 - Step 4: Simplify right side
118,979.63x = 12,342,385,376.68 - Step 5: Solve for x
x = 12,342,385,376.68/118,979.63 - Step 6: Final answer
x = 103,735.28
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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.