Finding the Fourth Proportional to 127,315.80, 190,973.70 and 113,537.70
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Solution
The fourth proportional to 127,315.80, 190,973.70 and 113,537.70 is: 170,306.55
Step by Step Solution
- Step 1: Write the proportion equation
127,315.80 : 190,973.70 = 113,537.70 : x - Step 2: Convert to fraction form
127,315.80/190,973.70 = 113,537.70/x - Step 3: Cross multiply
127,315.80x = 190,973.70 × 113,537.70 - Step 4: Simplify right side
127,315.80x = 21,682,714,658.49 - Step 5: Solve for x
x = 21,682,714,658.49/127,315.80 - Step 6: Final answer
x = 170,306.55
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1.5x scale
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.