Finding the Fourth Proportional to 186,906.79, 257,937.21 and 106,345.91
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Solution
The fourth proportional to 186,906.79, 257,937.21 and 106,345.91 is: 146,760.68
Step by Step Solution
- Step 1: Write the proportion equation
186,906.79 : 257,937.21 = 106,345.91 : x - Step 2: Convert to fraction form
186,906.79/257,937.21 = 106,345.91/x - Step 3: Cross multiply
186,906.79x = 257,937.21 × 106,345.91 - Step 4: Simplify right side
186,906.79x = 27,430,567,965.15 - Step 5: Solve for x
x = 27,430,567,965.15/186,906.79 - Step 6: Final answer
x = 146,760.68
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1.5x scale
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.