Finding the Fourth Proportional to 186,709.38, 257,614.65 and 106,130.56
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Solution
The fourth proportional to 186,709.38, 257,614.65 and 106,130.56 is: 146,434.99
Step by Step Solution
- Step 1: Write the proportion equation
186,709.38 : 257,614.65 = 106,130.56 : x - Step 2: Convert to fraction form
186,709.38/257,614.65 = 106,130.56/x - Step 3: Cross multiply
186,709.38x = 257,614.65 × 106,130.56 - Step 4: Simplify right side
186,709.38x = 27,340,787,068.70 - Step 5: Solve for x
x = 27,340,787,068.70/186,709.38 - Step 6: Final answer
x = 146,434.99
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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.