Finding the Fourth Proportional to 143,764.49, 198,395.81 and 83,370.99
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Solution
The fourth proportional to 143,764.49, 198,395.81 and 83,370.99 is: 115,052.44
Step by Step Solution
- Step 1: Write the proportion equation
143,764.49 : 198,395.81 = 83,370.99 : x - Step 2: Convert to fraction form
143,764.49/198,395.81 = 83,370.99/x - Step 3: Cross multiply
143,764.49x = 198,395.81 × 83,370.99 - Step 4: Simplify right side
143,764.49x = 16,540,455,639.65 - Step 5: Solve for x
x = 16,540,455,639.65/143,764.49 - Step 6: Final answer
x = 115,052.44
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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.