Finding the Fourth Proportional to 186,740.29, 257,691.36 and 106,156.63
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Solution
The fourth proportional to 186,740.29, 257,691.36 and 106,156.63 is: 146,490.33
Step by Step Solution
- Step 1: Write the proportion equation
186,740.29 : 257,691.36 = 106,156.63 : x - Step 2: Convert to fraction form
186,740.29/257,691.36 = 106,156.63/x - Step 3: Cross multiply
186,740.29x = 257,691.36 × 106,156.63 - Step 4: Simplify right side
186,740.29x = 27,355,646,357.72 - Step 5: Solve for x
x = 27,355,646,357.72/186,740.29 - Step 6: Final answer
x = 146,490.33
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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.