Finding the Fourth Proportional to 122,854.39, 169,537.26 and 69,135.19
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Solution
The fourth proportional to 122,854.39, 169,537.26 and 69,135.19 is: 95,405.55
Step by Step Solution
- Step 1: Write the proportion equation
122,854.39 : 169,537.26 = 69,135.19 : x - Step 2: Convert to fraction form
122,854.39/169,537.26 = 69,135.19/x - Step 3: Cross multiply
122,854.39x = 169,537.26 × 69,135.19 - Step 4: Simplify right side
122,854.39x = 11,720,990,682.18 - Step 5: Solve for x
x = 11,720,990,682.18/122,854.39 - Step 6: Final answer
x = 95,405.55
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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.