Finding the Fourth Proportional to 124,609.95, 185,961.32 and 111,312.99
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Solution
The fourth proportional to 124,609.95, 185,961.32 and 111,312.99 is: 166,117.64
Step by Step Solution
- Step 1: Write the proportion equation
124,609.95 : 185,961.32 = 111,312.99 : x - Step 2: Convert to fraction form
124,609.95/185,961.32 = 111,312.99/x - Step 3: Cross multiply
124,609.95x = 185,961.32 × 111,312.99 - Step 4: Simplify right side
124,609.95x = 20,699,910,553.55 - Step 5: Solve for x
x = 20,699,910,553.55/124,609.95 - Step 6: Final answer
x = 166,117.64
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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.