Finding the Fourth Proportional to 99,829.26, 137,731.26 and 65,854.62
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Solution
The fourth proportional to 99,829.26, 137,731.26 and 65,854.62 is: 90,857.53
Step by Step Solution
- Step 1: Write the proportion equation
99,829.26 : 137,731.26 = 65,854.62 : x - Step 2: Convert to fraction form
99,829.26/137,731.26 = 65,854.62/x - Step 3: Cross multiply
99,829.26x = 137,731.26 × 65,854.62 - Step 4: Simplify right side
99,829.26x = 9,070,239,789.42 - Step 5: Solve for x
x = 9,070,239,789.42/99,829.26 - Step 6: Final answer
x = 90,857.53
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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.