Finding the Fourth Proportional to 97,691.20, 146,536.80 and 84,860.80
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Solution
The fourth proportional to 97,691.20, 146,536.80 and 84,860.80 is: 127,291.20
Step by Step Solution
- Step 1: Write the proportion equation
97,691.20 : 146,536.80 = 84,860.80 : x - Step 2: Convert to fraction form
97,691.20/146,536.80 = 84,860.80/x - Step 3: Cross multiply
97,691.20x = 146,536.80 × 84,860.80 - Step 4: Simplify right side
97,691.20x = 12,435,230,077.44 - Step 5: Solve for x
x = 12,435,230,077.44/97,691.20 - Step 6: Final answer
x = 127,291.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.