Finding the Fourth Proportional to 186,920.67, 257,941.47 and 106,340.65
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Solution
The fourth proportional to 186,920.67, 257,941.47 and 106,340.65 is: 146,744.95
Step by Step Solution
- Step 1: Write the proportion equation
186,920.67 : 257,941.47 = 106,340.65 : x - Step 2: Convert to fraction form
186,920.67/257,941.47 = 106,340.65/x - Step 3: Cross multiply
186,920.67x = 257,941.47 × 106,340.65 - Step 4: Simplify right side
186,920.67x = 27,429,663,581.76 - Step 5: Solve for x
x = 27,429,663,581.76/186,920.67 - Step 6: Final answer
x = 146,744.95
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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.