Finding the Fourth Proportional to 127,297.80, 190,898.10 and 38,521.80
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Solution
The fourth proportional to 127,297.80, 190,898.10 and 38,521.80 is: 57,767.99
Step by Step Solution
- Step 1: Write the proportion equation
127,297.80 : 190,898.10 = 38,521.80 : x - Step 2: Convert to fraction form
127,297.80/190,898.10 = 38,521.80/x - Step 3: Cross multiply
127,297.80x = 190,898.10 × 38,521.80 - Step 4: Simplify right side
127,297.80x = 7,353,738,428.58 - Step 5: Solve for x
x = 7,353,738,428.58/127,297.80 - Step 6: Final answer
x = 57,767.99
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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.