Finding the Fourth Proportional to 138,608.96, 207,939.06 and 43,862.99
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Solution
The fourth proportional to 138,608.96, 207,939.06 and 43,862.99 is: 65,802.59
Step by Step Solution
- Step 1: Write the proportion equation
138,608.96 : 207,939.06 = 43,862.99 : x - Step 2: Convert to fraction form
138,608.96/207,939.06 = 43,862.99/x - Step 3: Cross multiply
138,608.96x = 207,939.06 × 43,862.99 - Step 4: Simplify right side
138,608.96x = 9,120,827,869.69 - Step 5: Solve for x
x = 9,120,827,869.69/138,608.96 - Step 6: Final answer
x = 65,802.59
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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.