Finding the Fourth Proportional to 145,976.91, 201,371.64 and 126,813.66
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Solution
The fourth proportional to 145,976.91, 201,371.64 and 126,813.66 is: 174,936.40
Step by Step Solution
- Step 1: Write the proportion equation
145,976.91 : 201,371.64 = 126,813.66 : x - Step 2: Convert to fraction form
145,976.91/201,371.64 = 126,813.66/x - Step 3: Cross multiply
145,976.91x = 201,371.64 × 126,813.66 - Step 4: Simplify right side
145,976.91x = 25,536,674,688.60 - Step 5: Solve for x
x = 25,536,674,688.60/145,976.91 - Step 6: Final answer
x = 174,936.40
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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.