Finding the Fourth Proportional to 188,508.69, 260,135.40 and 103,625.14
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Solution
The fourth proportional to 188,508.69, 260,135.40 and 103,625.14 is: 142,999.07
Step by Step Solution
- Step 1: Write the proportion equation
188,508.69 : 260,135.40 = 103,625.14 : x - Step 2: Convert to fraction form
188,508.69/260,135.40 = 103,625.14/x - Step 3: Cross multiply
188,508.69x = 260,135.40 × 103,625.14 - Step 4: Simplify right side
188,508.69x = 26,956,567,243.96 - Step 5: Solve for x
x = 26,956,567,243.96/188,508.69 - Step 6: Final answer
x = 142,999.07
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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.