Finding the Fourth Proportional to 124,783.68, 172,201.60 and 68,195.08
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Solution
The fourth proportional to 124,783.68, 172,201.60 and 68,195.08 is: 94,109.28
Step by Step Solution
- Step 1: Write the proportion equation
124,783.68 : 172,201.60 = 68,195.08 : x - Step 2: Convert to fraction form
124,783.68/172,201.60 = 68,195.08/x - Step 3: Cross multiply
124,783.68x = 172,201.60 × 68,195.08 - Step 4: Simplify right side
124,783.68x = 11,743,301,888.13 - Step 5: Solve for x
x = 11,743,301,888.13/124,783.68 - Step 6: Final answer
x = 94,109.28
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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.