Finding the Fourth Proportional to 127,813.12, 176,395.22 and 76,842.44
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Solution
The fourth proportional to 127,813.12, 176,395.22 and 76,842.44 is: 106,050.45
Step by Step Solution
- Step 1: Write the proportion equation
127,813.12 : 176,395.22 = 76,842.44 : x - Step 2: Convert to fraction form
127,813.12/176,395.22 = 76,842.44/x - Step 3: Cross multiply
127,813.12x = 176,395.22 × 76,842.44 - Step 4: Simplify right side
127,813.12x = 13,554,639,109.14 - Step 5: Solve for x
x = 13,554,639,109.14/127,813.12 - Step 6: Final answer
x = 106,050.45
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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.