Finding the Fourth Proportional to 121,171.42, 167,216.48 and 70,186.98
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Solution
The fourth proportional to 121,171.42, 167,216.48 and 70,186.98 is: 96,857.99
Step by Step Solution
- Step 1: Write the proportion equation
121,171.42 : 167,216.48 = 70,186.98 : x - Step 2: Convert to fraction form
121,171.42/167,216.48 = 70,186.98/x - Step 3: Cross multiply
121,171.42x = 167,216.48 × 70,186.98 - Step 4: Simplify right side
121,171.42x = 11,736,420,053.21 - Step 5: Solve for x
x = 11,736,420,053.21/121,171.42 - Step 6: Final answer
x = 96,857.99
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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.