Finding the Fourth Proportional to 149,362.29, 206,118.81 and 81,379.07
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Solution
The fourth proportional to 149,362.29, 206,118.81 and 81,379.07 is: 112,302.48
Step by Step Solution
- Step 1: Write the proportion equation
149,362.29 : 206,118.81 = 81,379.07 : x - Step 2: Convert to fraction form
149,362.29/206,118.81 = 81,379.07/x - Step 3: Cross multiply
149,362.29x = 206,118.81 × 81,379.07 - Step 4: Simplify right side
149,362.29x = 16,773,756,036.71 - Step 5: Solve for x
x = 16,773,756,036.71/149,362.29 - Step 6: Final answer
x = 112,302.48
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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.