Finding the Fourth Proportional to 138,618.26, 207,896.74 and 38,751.60
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Solution
The fourth proportional to 138,618.26, 207,896.74 and 38,751.60 is: 58,118.83
Step by Step Solution
- Step 1: Write the proportion equation
138,618.26 : 207,896.74 = 38,751.60 : x - Step 2: Convert to fraction form
138,618.26/207,896.74 = 38,751.60/x - Step 3: Cross multiply
138,618.26x = 207,896.74 × 38,751.60 - Step 4: Simplify right side
138,618.26x = 8,056,331,309.78 - Step 5: Solve for x
x = 8,056,331,309.78/138,618.26 - Step 6: Final answer
x = 58,118.83
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.