Finding the Fourth Proportional to 168,221.77, 232,143.14 and 91,741.48
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Solution
The fourth proportional to 168,221.77, 232,143.14 and 91,741.48 is: 126,601.66
Step by Step Solution
- Step 1: Write the proportion equation
168,221.77 : 232,143.14 = 91,741.48 : x - Step 2: Convert to fraction form
168,221.77/232,143.14 = 91,741.48/x - Step 3: Cross multiply
168,221.77x = 232,143.14 × 91,741.48 - Step 4: Simplify right side
168,221.77x = 21,297,154,776.74 - Step 5: Solve for x
x = 21,297,154,776.74/168,221.77 - Step 6: Final answer
x = 126,601.66
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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.