Finding the Fourth Proportional to 119,017.99, 164,095.36 and 87,131.53
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Solution
The fourth proportional to 119,017.99, 164,095.36 and 87,131.53 is: 120,132.09
Step by Step Solution
- Step 1: Write the proportion equation
119,017.99 : 164,095.36 = 87,131.53 : x - Step 2: Convert to fraction form
119,017.99/164,095.36 = 87,131.53/x - Step 3: Cross multiply
119,017.99x = 164,095.36 × 87,131.53 - Step 4: Simplify right side
119,017.99x = 14,297,879,782.70 - Step 5: Solve for x
x = 14,297,879,782.70/119,017.99 - Step 6: Final answer
x = 120,132.09
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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.