Finding the Fourth Proportional to 97,473.52, 145,464.14 and 86,974.96
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Solution
The fourth proportional to 97,473.52, 145,464.14 and 86,974.96 is: 129,796.66
Step by Step Solution
- Step 1: Write the proportion equation
97,473.52 : 145,464.14 = 86,974.96 : x - Step 2: Convert to fraction form
97,473.52/145,464.14 = 86,974.96/x - Step 3: Cross multiply
97,473.52x = 145,464.14 × 86,974.96 - Step 4: Simplify right side
97,473.52x = 12,651,737,757.93 - Step 5: Solve for x
x = 12,651,737,757.93/97,473.52 - Step 6: Final answer
x = 129,796.66
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.