Finding the Fourth Proportional to 125,395.57, 187,772.21 and 69,173.18
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Solution
The fourth proportional to 125,395.57, 187,772.21 and 69,173.18 is: 103,582.63
Step by Step Solution
- Step 1: Write the proportion equation
125,395.57 : 187,772.21 = 69,173.18 : x - Step 2: Convert to fraction form
125,395.57/187,772.21 = 69,173.18/x - Step 3: Cross multiply
125,395.57x = 187,772.21 × 69,173.18 - Step 4: Simplify right side
125,395.57x = 12,988,802,005.46 - Step 5: Solve for x
x = 12,988,802,005.46/125,395.57 - Step 6: Final answer
x = 103,582.63
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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.