Finding the Fourth Proportional to 149,148.99, 205,822.26 and 81,166.19
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Solution
The fourth proportional to 149,148.99, 205,822.26 and 81,166.19 is: 112,007.51
Step by Step Solution
- Step 1: Write the proportion equation
149,148.99 : 205,822.26 = 81,166.19 : x - Step 2: Convert to fraction form
149,148.99/205,822.26 = 81,166.19/x - Step 3: Cross multiply
149,148.99x = 205,822.26 × 81,166.19 - Step 4: Simplify right side
149,148.99x = 16,705,807,632.28 - Step 5: Solve for x
x = 16,705,807,632.28/149,148.99 - Step 6: Final answer
x = 112,007.51
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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.