Finding the Fourth Proportional to 124,715.06, 172,110.57 and 68,130.08
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Solution
The fourth proportional to 124,715.06, 172,110.57 and 68,130.08 is: 94,021.58
Step by Step Solution
- Step 1: Write the proportion equation
124,715.06 : 172,110.57 = 68,130.08 : x - Step 2: Convert to fraction form
124,715.06/172,110.57 = 68,130.08/x - Step 3: Cross multiply
124,715.06x = 172,110.57 × 68,130.08 - Step 4: Simplify right side
124,715.06x = 11,725,907,333.22 - Step 5: Solve for x
x = 11,725,907,333.22/124,715.06 - Step 6: Final answer
x = 94,021.58
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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.