Finding the Fourth Proportional to 120,985.99, 181,515.91 and 61,863.19
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Solution
The fourth proportional to 120,985.99, 181,515.91 and 61,863.19 is: 92,813.67
Step by Step Solution
- Step 1: Write the proportion equation
120,985.99 : 181,515.91 = 61,863.19 : x - Step 2: Convert to fraction form
120,985.99/181,515.91 = 61,863.19/x - Step 3: Cross multiply
120,985.99x = 181,515.91 × 61,863.19 - Step 4: Simplify right side
120,985.99x = 11,229,153,228.35 - Step 5: Solve for x
x = 11,229,153,228.35/120,985.99 - Step 6: Final answer
x = 92,813.67
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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.