Finding the Fourth Proportional to 188,621.59, 260,299.97 and 103,740.07
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Solution
The fourth proportional to 188,621.59, 260,299.97 and 103,740.07 is: 143,162.49
Step by Step Solution
- Step 1: Write the proportion equation
188,621.59 : 260,299.97 = 103,740.07 : x - Step 2: Convert to fraction form
188,621.59/260,299.97 = 103,740.07/x - Step 3: Cross multiply
188,621.59x = 260,299.97 × 103,740.07 - Step 4: Simplify right side
188,621.59x = 27,003,537,108.80 - Step 5: Solve for x
x = 27,003,537,108.80/188,621.59 - Step 6: Final answer
x = 143,162.49
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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.