Finding the Fourth Proportional to 189,528.18, 261,547.20 and 104,643.42
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Solution
The fourth proportional to 189,528.18, 261,547.20 and 104,643.42 is: 144,406.99
Step by Step Solution
- Step 1: Write the proportion equation
189,528.18 : 261,547.20 = 104,643.42 : x - Step 2: Convert to fraction form
189,528.18/261,547.20 = 104,643.42/x - Step 3: Cross multiply
189,528.18x = 261,547.20 × 104,643.42 - Step 4: Simplify right side
189,528.18x = 27,369,193,499.42 - Step 5: Solve for x
x = 27,369,193,499.42/189,528.18 - Step 6: Final answer
x = 144,406.99
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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.