Finding the Fourth Proportional to 121,321.14, 167,423.84 and 70,364.07
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Solution
The fourth proportional to 121,321.14, 167,423.84 and 70,364.07 is: 97,102.80
Step by Step Solution
- Step 1: Write the proportion equation
121,321.14 : 167,423.84 = 70,364.07 : x - Step 2: Convert to fraction form
121,321.14/167,423.84 = 70,364.07/x - Step 3: Cross multiply
121,321.14x = 167,423.84 × 70,364.07 - Step 4: Simplify right side
121,321.14x = 11,780,622,445.61 - Step 5: Solve for x
x = 11,780,622,445.61/121,321.14 - Step 6: Final answer
x = 97,102.80
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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.