Finding the Fourth Proportional to 125,178.19, 187,796.81 and 40,938.02
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Solution
The fourth proportional to 125,178.19, 187,796.81 and 40,938.02 is: 61,416.69
Step by Step Solution
- Step 1: Write the proportion equation
125,178.19 : 187,796.81 = 40,938.02 : x - Step 2: Convert to fraction form
125,178.19/187,796.81 = 40,938.02/x - Step 3: Cross multiply
125,178.19x = 187,796.81 × 40,938.02 - Step 4: Simplify right side
125,178.19x = 7,688,029,431.32 - Step 5: Solve for x
x = 7,688,029,431.32/125,178.19 - Step 6: Final answer
x = 61,416.69
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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.