Finding the Fourth Proportional to 132,315.80, 182,671.47 and 87,125.09
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Solution
The fourth proportional to 132,315.80, 182,671.47 and 87,125.09 is: 120,282.45
Step by Step Solution
- Step 1: Write the proportion equation
132,315.80 : 182,671.47 = 87,125.09 : x - Step 2: Convert to fraction form
132,315.80/182,671.47 = 87,125.09/x - Step 3: Cross multiply
132,315.80x = 182,671.47 × 87,125.09 - Step 4: Simplify right side
132,315.80x = 15,915,267,350.83 - Step 5: Solve for x
x = 15,915,267,350.83/132,315.80 - Step 6: Final answer
x = 120,282.45
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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.