Finding the Fourth Proportional to 118,664.70, 177,651.45 and 115,208.70
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Solution
The fourth proportional to 118,664.70, 177,651.45 and 115,208.70 is: 172,477.52
Step by Step Solution
- Step 1: Write the proportion equation
118,664.70 : 177,651.45 = 115,208.70 : x - Step 2: Convert to fraction form
118,664.70/177,651.45 = 115,208.70/x - Step 3: Cross multiply
118,664.70x = 177,651.45 × 115,208.70 - Step 4: Simplify right side
118,664.70x = 20,466,992,607.62 - Step 5: Solve for x
x = 20,466,992,607.62/118,664.70 - Step 6: Final answer
x = 172,477.52
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1.5x scale
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.