Finding the Fourth Proportional to 104,416.16, 144,163.68 and 61,988.32
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Solution
The fourth proportional to 104,416.16, 144,163.68 and 61,988.32 is: 85,585.07
Step by Step Solution
- Step 1: Write the proportion equation
104,416.16 : 144,163.68 = 61,988.32 : x - Step 2: Convert to fraction form
104,416.16/144,163.68 = 61,988.32/x - Step 3: Cross multiply
104,416.16x = 144,163.68 × 61,988.32 - Step 4: Simplify right side
104,416.16x = 8,936,464,328.22 - Step 5: Solve for x
x = 8,936,464,328.22/104,416.16 - Step 6: Final answer
x = 85,585.07
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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.