Finding the Fourth Proportional to 105,176.12, 157,840.28 and 41,143.70
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Solution
The fourth proportional to 105,176.12, 157,840.28 and 41,143.70 is: 61,745.32
Step by Step Solution
- Step 1: Write the proportion equation
105,176.12 : 157,840.28 = 41,143.70 : x - Step 2: Convert to fraction form
105,176.12/157,840.28 = 41,143.70/x - Step 3: Cross multiply
105,176.12x = 157,840.28 × 41,143.70 - Step 4: Simplify right side
105,176.12x = 6,494,133,128.24 - Step 5: Solve for x
x = 6,494,133,128.24/105,176.12 - Step 6: Final answer
x = 61,745.32
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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.