Finding the Fourth Proportional to 186,906.48, 257,936.76 and 106,345.68
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Solution
The fourth proportional to 186,906.48, 257,936.76 and 106,345.68 is: 146,760.35
Step by Step Solution
- Step 1: Write the proportion equation
186,906.48 : 257,936.76 = 106,345.68 : x - Step 2: Convert to fraction form
186,906.48/257,936.76 = 106,345.68/x - Step 3: Cross multiply
186,906.48x = 257,936.76 × 106,345.68 - Step 4: Simplify right side
186,906.48x = 27,430,460,139.20 - Step 5: Solve for x
x = 27,430,460,139.20/186,906.48 - Step 6: Final answer
x = 146,760.35
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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.