Finding the Fourth Proportional to 187,898.09, 259,299.05 and 103,020.62
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Solution
The fourth proportional to 187,898.09, 259,299.05 and 103,020.62 is: 142,168.28
Step by Step Solution
- Step 1: Write the proportion equation
187,898.09 : 259,299.05 = 103,020.62 : x - Step 2: Convert to fraction form
187,898.09/259,299.05 = 103,020.62/x - Step 3: Cross multiply
187,898.09x = 259,299.05 × 103,020.62 - Step 4: Simplify right side
187,898.09x = 26,713,147,084.81 - Step 5: Solve for x
x = 26,713,147,084.81/187,898.09 - Step 6: Final answer
x = 142,168.28
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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.