Finding the Fourth Proportional to 117,231.35, 161,760.98 and 69,476.99
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Solution
The fourth proportional to 117,231.35, 161,760.98 and 69,476.99 is: 95,867.41
Step by Step Solution
- Step 1: Write the proportion equation
117,231.35 : 161,760.98 = 69,476.99 : x - Step 2: Convert to fraction form
117,231.35/161,760.98 = 69,476.99/x - Step 3: Cross multiply
117,231.35x = 161,760.98 × 69,476.99 - Step 4: Simplify right side
117,231.35x = 11,238,665,354.74 - Step 5: Solve for x
x = 11,238,665,354.74/117,231.35 - Step 6: Final answer
x = 95,867.41
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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.