Finding the Fourth Proportional to 135,701.64, 187,271.26 and 75,270.31
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Solution
The fourth proportional to 135,701.64, 187,271.26 and 75,270.31 is: 103,874.69
Step by Step Solution
- Step 1: Write the proportion equation
135,701.64 : 187,271.26 = 75,270.31 : x - Step 2: Convert to fraction form
135,701.64/187,271.26 = 75,270.31/x - Step 3: Cross multiply
135,701.64x = 187,271.26 × 75,270.31 - Step 4: Simplify right side
135,701.64x = 14,095,965,137.94 - Step 5: Solve for x
x = 14,095,965,137.94/135,701.64 - Step 6: Final answer
x = 103,874.69
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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.