Finding the Fourth Proportional to 149,362.23, 206,117.46 and 81,379.99
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Solution
The fourth proportional to 149,362.23, 206,117.46 and 81,379.99 is: 112,303.07
Step by Step Solution
- Step 1: Write the proportion equation
149,362.23 : 206,117.46 = 81,379.99 : x - Step 2: Convert to fraction form
149,362.23/206,117.46 = 81,379.99/x - Step 3: Cross multiply
149,362.23x = 206,117.46 × 81,379.99 - Step 4: Simplify right side
149,362.23x = 16,773,837,091.27 - Step 5: Solve for x
x = 16,773,837,091.27/149,362.23 - Step 6: Final answer
x = 112,303.07
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.