Finding the Fourth Proportional to 112,406.13, 168,729.18 and 48,395.91
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Solution
The fourth proportional to 112,406.13, 168,729.18 and 48,395.91 is: 72,645.53
Step by Step Solution
- Step 1: Write the proportion equation
112,406.13 : 168,729.18 = 48,395.91 : x - Step 2: Convert to fraction form
112,406.13/168,729.18 = 48,395.91/x - Step 3: Cross multiply
112,406.13x = 168,729.18 × 48,395.91 - Step 4: Simplify right side
112,406.13x = 8,165,802,660.90 - Step 5: Solve for x
x = 8,165,802,660.90/112,406.13 - Step 6: Final answer
x = 72,645.53
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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.