Finding the Fourth Proportional to 187,154.38, 258,268.80 and 102,271.96
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Solution
The fourth proportional to 187,154.38, 258,268.80 and 102,271.96 is: 141,132.99
Step by Step Solution
- Step 1: Write the proportion equation
187,154.38 : 258,268.80 = 102,271.96 : x - Step 2: Convert to fraction form
187,154.38/258,268.80 = 102,271.96/x - Step 3: Cross multiply
187,154.38x = 258,268.80 × 102,271.96 - Step 4: Simplify right side
187,154.38x = 26,413,656,382.85 - Step 5: Solve for x
x = 26,413,656,382.85/187,154.38 - Step 6: Final answer
x = 141,132.99
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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.