Finding the Fourth Proportional to 156,727.62, 216,286.70 and 88,742.80
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Solution
The fourth proportional to 156,727.62, 216,286.70 and 88,742.80 is: 122,466.53
Step by Step Solution
- Step 1: Write the proportion equation
156,727.62 : 216,286.70 = 88,742.80 : x - Step 2: Convert to fraction form
156,727.62/216,286.70 = 88,742.80/x - Step 3: Cross multiply
156,727.62x = 216,286.70 × 88,742.80 - Step 4: Simplify right side
156,727.62x = 19,193,887,187.40 - Step 5: Solve for x
x = 19,193,887,187.40/156,727.62 - Step 6: Final answer
x = 122,466.53
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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.