Finding the Fourth Proportional to 125,240.30, 187,416.99 and 77,877.70
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Solution
The fourth proportional to 125,240.30, 187,416.99 and 77,877.70 is: 116,540.79
Step by Step Solution
- Step 1: Write the proportion equation
125,240.30 : 187,416.99 = 77,877.70 : x - Step 2: Convert to fraction form
125,240.30/187,416.99 = 77,877.70/x - Step 3: Cross multiply
125,240.30x = 187,416.99 × 77,877.70 - Step 4: Simplify right side
125,240.30x = 14,595,604,122.12 - Step 5: Solve for x
x = 14,595,604,122.12/125,240.30 - Step 6: Final answer
x = 116,540.79
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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.