Finding the Fourth Proportional to 112,911.06, 169,395.06 and 79,695.99
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Solution
The fourth proportional to 112,911.06, 169,395.06 and 79,695.99 is: 119,564.08
Step by Step Solution
- Step 1: Write the proportion equation
112,911.06 : 169,395.06 = 79,695.99 : x - Step 2: Convert to fraction form
112,911.06/169,395.06 = 79,695.99/x - Step 3: Cross multiply
112,911.06x = 169,395.06 × 79,695.99 - Step 4: Simplify right side
112,911.06x = 13,500,107,007.81 - Step 5: Solve for x
x = 13,500,107,007.81/112,911.06 - Step 6: Final answer
x = 119,564.08
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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.