Finding the Fourth Proportional to 135,920.91, 187,570.87 and 75,497.18
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Solution
The fourth proportional to 135,920.91, 187,570.87 and 75,497.18 is: 104,186.12
Step by Step Solution
- Step 1: Write the proportion equation
135,920.91 : 187,570.87 = 75,497.18 : x - Step 2: Convert to fraction form
135,920.91/187,570.87 = 75,497.18/x - Step 3: Cross multiply
135,920.91x = 187,570.87 × 75,497.18 - Step 4: Simplify right side
135,920.91x = 14,161,071,735.15 - Step 5: Solve for x
x = 14,161,071,735.15/135,920.91 - Step 6: Final answer
x = 104,186.12
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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.