Finding the Fourth Proportional to 125,160.39, 187,740.99 and 31,666.14
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Solution
The fourth proportional to 125,160.39, 187,740.99 and 31,666.14 is: 47,499.31
Step by Step Solution
- Step 1: Write the proportion equation
125,160.39 : 187,740.99 = 31,666.14 : x - Step 2: Convert to fraction form
125,160.39/187,740.99 = 31,666.14/x - Step 3: Cross multiply
125,160.39x = 187,740.99 × 31,666.14 - Step 4: Simplify right side
125,160.39x = 5,945,032,473.08 - Step 5: Solve for x
x = 5,945,032,473.08/125,160.39 - Step 6: Final answer
x = 47,499.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.