Finding the Fourth Proportional to 186,336.21, 257,138.34 and 103,549.91
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Solution
The fourth proportional to 186,336.21, 257,138.34 and 103,549.91 is: 142,895.75
Step by Step Solution
- Step 1: Write the proportion equation
186,336.21 : 257,138.34 = 103,549.91 : x - Step 2: Convert to fraction form
186,336.21/257,138.34 = 103,549.91/x - Step 3: Cross multiply
186,336.21x = 257,138.34 × 103,549.91 - Step 4: Simplify right side
186,336.21x = 26,626,651,964.55 - Step 5: Solve for x
x = 26,626,651,964.55/186,336.21 - Step 6: Final answer
x = 142,895.75
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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.