Finding the Fourth Proportional to 97,418.12, 134,445.30 and 81,474.44
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Solution
The fourth proportional to 97,418.12, 134,445.30 and 81,474.44 is: 112,441.66
Step by Step Solution
- Step 1: Write the proportion equation
97,418.12 : 134,445.30 = 81,474.44 : x - Step 2: Convert to fraction form
97,418.12/134,445.30 = 81,474.44/x - Step 3: Cross multiply
97,418.12x = 134,445.30 × 81,474.44 - Step 4: Simplify right side
97,418.12x = 10,953,855,528.13 - Step 5: Solve for x
x = 10,953,855,528.13/97,418.12 - Step 6: Final answer
x = 112,441.66
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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.