Finding the Fourth Proportional to 186,259.84, 257,043.68 and 105,690.72
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Solution
The fourth proportional to 186,259.84, 257,043.68 and 105,690.72 is: 145,856.09
Step by Step Solution
- Step 1: Write the proportion equation
186,259.84 : 257,043.68 = 105,690.72 : x - Step 2: Convert to fraction form
186,259.84/257,043.68 = 105,690.72/x - Step 3: Cross multiply
186,259.84x = 257,043.68 × 105,690.72 - Step 4: Simplify right side
186,259.84x = 27,167,131,610.65 - Step 5: Solve for x
x = 27,167,131,610.65/186,259.84 - Step 6: Final answer
x = 145,856.09
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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.