Finding the Fourth Proportional to 99,070.26, 136,716.93 and 56,629.70
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Solution
The fourth proportional to 99,070.26, 136,716.93 and 56,629.70 is: 78,148.97
Step by Step Solution
- Step 1: Write the proportion equation
99,070.26 : 136,716.93 = 56,629.70 : x - Step 2: Convert to fraction form
99,070.26/136,716.93 = 56,629.70/x - Step 3: Cross multiply
99,070.26x = 136,716.93 × 56,629.70 - Step 4: Simplify right side
99,070.26x = 7,742,238,389.03 - Step 5: Solve for x
x = 7,742,238,389.03/99,070.26 - Step 6: Final answer
x = 78,148.97
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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.