Finding the Fourth Proportional to 125,662.89, 173,253.11 and 102,918.09
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Solution
The fourth proportional to 125,662.89, 173,253.11 and 102,918.09 is: 141,894.55
Step by Step Solution
- Step 1: Write the proportion equation
125,662.89 : 173,253.11 = 102,918.09 : x - Step 2: Convert to fraction form
125,662.89/173,253.11 = 102,918.09/x - Step 3: Cross multiply
125,662.89x = 173,253.11 × 102,918.09 - Step 4: Simplify right side
125,662.89x = 17,830,878,653.17 - Step 5: Solve for x
x = 17,830,878,653.17/125,662.89 - Step 6: Final answer
x = 141,894.55
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1.5x scale
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.