Finding the Fourth Proportional to 122,971.96, 169,699.50 and 69,257.08
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Solution
The fourth proportional to 122,971.96, 169,699.50 and 69,257.08 is: 95,573.75
Step by Step Solution
- Step 1: Write the proportion equation
122,971.96 : 169,699.50 = 69,257.08 : x - Step 2: Convert to fraction form
122,971.96/169,699.50 = 69,257.08/x - Step 3: Cross multiply
122,971.96x = 169,699.50 × 69,257.08 - Step 4: Simplify right side
122,971.96x = 11,752,891,847.46 - Step 5: Solve for x
x = 11,752,891,847.46/122,971.96 - Step 6: Final answer
x = 95,573.75
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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.