Finding the Fourth Proportional to 186,894.84, 257,886.99 and 105,211.31
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Solution
The fourth proportional to 186,894.84, 257,886.99 and 105,211.31 is: 145,175.90
Step by Step Solution
- Step 1: Write the proportion equation
186,894.84 : 257,886.99 = 105,211.31 : x - Step 2: Convert to fraction form
186,894.84/257,886.99 = 105,211.31/x - Step 3: Cross multiply
186,894.84x = 257,886.99 × 105,211.31 - Step 4: Simplify right side
186,894.84x = 27,132,626,760.42 - Step 5: Solve for x
x = 27,132,626,760.42/186,894.84 - Step 6: Final answer
x = 145,175.90
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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.