Finding the Fourth Proportional to 189,378.53, 261,342.07 and 104,495.52
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Solution
The fourth proportional to 189,378.53, 261,342.07 and 104,495.52 is: 144,203.65
Step by Step Solution
- Step 1: Write the proportion equation
189,378.53 : 261,342.07 = 104,495.52 : x - Step 2: Convert to fraction form
189,378.53/261,342.07 = 104,495.52/x - Step 3: Cross multiply
189,378.53x = 261,342.07 × 104,495.52 - Step 4: Simplify right side
189,378.53x = 27,309,075,241.29 - Step 5: Solve for x
x = 27,309,075,241.29/189,378.53 - Step 6: Final answer
x = 144,203.65
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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.