Finding the Fourth Proportional to 199,572.19, 275,409.62 and 136,021.01
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Solution
The fourth proportional to 199,572.19, 275,409.62 and 136,021.01 is: 187,708.99
Step by Step Solution
- Step 1: Write the proportion equation
199,572.19 : 275,409.62 = 136,021.01 : x - Step 2: Convert to fraction form
199,572.19/275,409.62 = 136,021.01/x - Step 3: Cross multiply
199,572.19x = 275,409.62 × 136,021.01 - Step 4: Simplify right side
199,572.19x = 37,461,493,129.04 - Step 5: Solve for x
x = 37,461,493,129.04/199,572.19 - Step 6: Final answer
x = 187,708.99
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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.