Finding the Fourth Proportional to 98,720.03, 136,233.11 and 53,397.96
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Solution
The fourth proportional to 98,720.03, 136,233.11 and 53,397.96 is: 73,688.90
Step by Step Solution
- Step 1: Write the proportion equation
98,720.03 : 136,233.11 = 53,397.96 : x - Step 2: Convert to fraction form
98,720.03/136,233.11 = 53,397.96/x - Step 3: Cross multiply
98,720.03x = 136,233.11 × 53,397.96 - Step 4: Simplify right side
98,720.03x = 7,274,569,891.47 - Step 5: Solve for x
x = 7,274,569,891.47/98,720.03 - Step 6: Final answer
x = 73,688.90
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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.