Finding the Fourth Proportional to 135,124.16, 186,425.88 and 87,437.84
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Solution
The fourth proportional to 135,124.16, 186,425.88 and 87,437.84 is: 120,634.80
Step by Step Solution
- Step 1: Write the proportion equation
135,124.16 : 186,425.88 = 87,437.84 : x - Step 2: Convert to fraction form
135,124.16/186,425.88 = 87,437.84/x - Step 3: Cross multiply
135,124.16x = 186,425.88 × 87,437.84 - Step 4: Simplify right side
135,124.16x = 16,300,676,267.30 - Step 5: Solve for x
x = 16,300,676,267.30/135,124.16 - Step 6: Final answer
x = 120,634.80
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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.