Finding the Fourth Proportional to 121,465.98, 167,615.84 and 70,474.76
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Solution
The fourth proportional to 121,465.98, 167,615.84 and 70,474.76 is: 97,250.98
Step by Step Solution
- Step 1: Write the proportion equation
121,465.98 : 167,615.84 = 70,474.76 : x - Step 2: Convert to fraction form
121,465.98/167,615.84 = 70,474.76/x - Step 3: Cross multiply
121,465.98x = 167,615.84 × 70,474.76 - Step 4: Simplify right side
121,465.98x = 11,812,686,339.05 - Step 5: Solve for x
x = 11,812,686,339.05/121,465.98 - Step 6: Final answer
x = 97,250.98
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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.