Finding the Fourth Proportional to 187,539.18, 258,810.14 and 102,656.25
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Solution
The fourth proportional to 187,539.18, 258,810.14 and 102,656.25 is: 141,668.95
Step by Step Solution
- Step 1: Write the proportion equation
187,539.18 : 258,810.14 = 102,656.25 : x - Step 2: Convert to fraction form
187,539.18/258,810.14 = 102,656.25/x - Step 3: Cross multiply
187,539.18x = 258,810.14 × 102,656.25 - Step 4: Simplify right side
187,539.18x = 26,568,477,921.09 - Step 5: Solve for x
x = 26,568,477,921.09/187,539.18 - Step 6: Final answer
x = 141,668.95
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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.