Finding the Fourth Proportional to 135,047.16, 186,363.99 and 74,617.56
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Solution
The fourth proportional to 135,047.16, 186,363.99 and 74,617.56 is: 102,971.63
Step by Step Solution
- Step 1: Write the proportion equation
135,047.16 : 186,363.99 = 74,617.56 : x - Step 2: Convert to fraction form
135,047.16/186,363.99 = 74,617.56/x - Step 3: Cross multiply
135,047.16x = 186,363.99 × 74,617.56 - Step 4: Simplify right side
135,047.16x = 13,906,026,205.66 - Step 5: Solve for x
x = 13,906,026,205.66/135,047.16 - Step 6: Final answer
x = 102,971.63
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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.