Finding the Fourth Proportional to 121,221.26, 167,122.29 and 84,873.83
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Solution
The fourth proportional to 121,221.26, 167,122.29 and 84,873.83 is: 117,011.72
Step by Step Solution
- Step 1: Write the proportion equation
121,221.26 : 167,122.29 = 84,873.83 : x - Step 2: Convert to fraction form
121,221.26/167,122.29 = 84,873.83/x - Step 3: Cross multiply
121,221.26x = 167,122.29 × 84,873.83 - Step 4: Simplify right side
121,221.26x = 14,184,307,995.06 - Step 5: Solve for x
x = 14,184,307,995.06/121,221.26 - Step 6: Final answer
x = 117,011.72
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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.