Finding the Fourth Proportional to 99,961.08, 149,866.74 and 60,508.68
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Solution
The fourth proportional to 99,961.08, 149,866.74 and 60,508.68 is: 90,717.69
Step by Step Solution
- Step 1: Write the proportion equation
99,961.08 : 149,866.74 = 60,508.68 : x - Step 2: Convert to fraction form
99,961.08/149,866.74 = 60,508.68/x - Step 3: Cross multiply
99,961.08x = 149,866.74 × 60,508.68 - Step 4: Simplify right side
99,961.08x = 9,068,238,613.30 - Step 5: Solve for x
x = 9,068,238,613.30/99,961.08 - Step 6: Final answer
x = 90,717.69
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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.