Finding the Fourth Proportional to 165,615.12, 228,548.86 and 90,163.62
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Solution
The fourth proportional to 165,615.12, 228,548.86 and 90,163.62 is: 124,425.79
Step by Step Solution
- Step 1: Write the proportion equation
165,615.12 : 228,548.86 = 90,163.62 : x - Step 2: Convert to fraction form
165,615.12/228,548.86 = 90,163.62/x - Step 3: Cross multiply
165,615.12x = 228,548.86 × 90,163.62 - Step 4: Simplify right side
165,615.12x = 20,606,792,339.06 - Step 5: Solve for x
x = 20,606,792,339.06/165,615.12 - Step 6: Final answer
x = 124,425.79
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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.