Finding the Fourth Proportional to 121,175.60, 167,216.93 and 69,455.62
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Solution
The fourth proportional to 121,175.60, 167,216.93 and 69,455.62 is: 95,845.65
Step by Step Solution
- Step 1: Write the proportion equation
121,175.60 : 167,216.93 = 69,455.62 : x - Step 2: Convert to fraction form
121,175.60/167,216.93 = 69,455.62/x - Step 3: Cross multiply
121,175.60x = 167,216.93 × 69,455.62 - Step 4: Simplify right side
121,175.60x = 11,614,154,782.33 - Step 5: Solve for x
x = 11,614,154,782.33/121,175.60 - Step 6: Final answer
x = 95,845.65
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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.