Finding the Fourth Proportional to 127,813.80, 191,720.70 and 114,035.70
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Solution
The fourth proportional to 127,813.80, 191,720.70 and 114,035.70 is: 171,053.55
Step by Step Solution
- Step 1: Write the proportion equation
127,813.80 : 191,720.70 = 114,035.70 : x - Step 2: Convert to fraction form
127,813.80/191,720.70 = 114,035.70/x - Step 3: Cross multiply
127,813.80x = 191,720.70 × 114,035.70 - Step 4: Simplify right side
127,813.80x = 21,863,004,228.99 - Step 5: Solve for x
x = 21,863,004,228.99/127,813.80 - Step 6: Final answer
x = 171,053.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.