Finding the Fourth Proportional to 117,337.08, 161,920.80 and 69,561.84
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Solution
The fourth proportional to 117,337.08, 161,920.80 and 69,561.84 is: 95,992.75
Step by Step Solution
- Step 1: Write the proportion equation
117,337.08 : 161,920.80 = 69,561.84 : x - Step 2: Convert to fraction form
117,337.08/161,920.80 = 69,561.84/x - Step 3: Cross multiply
117,337.08x = 161,920.80 × 69,561.84 - Step 4: Simplify right side
117,337.08x = 11,263,508,782.27 - Step 5: Solve for x
x = 11,263,508,782.27/117,337.08 - Step 6: Final answer
x = 95,992.75
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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.