Finding the Fourth Proportional to 125,115.44, 187,202.31 and 87,748.45
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Solution
The fourth proportional to 125,115.44, 187,202.31 and 87,748.45 is: 131,292.45
Step by Step Solution
- Step 1: Write the proportion equation
125,115.44 : 187,202.31 = 87,748.45 : x - Step 2: Convert to fraction form
125,115.44/187,202.31 = 87,748.45/x - Step 3: Cross multiply
125,115.44x = 187,202.31 × 87,748.45 - Step 4: Simplify right side
125,115.44x = 16,426,712,538.92 - Step 5: Solve for x
x = 16,426,712,538.92/125,115.44 - Step 6: Final answer
x = 131,292.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.