Finding the Fourth Proportional to 113,270.68, 156,278.91 and 74,497.45
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Solution
The fourth proportional to 113,270.68, 156,278.91 and 74,497.45 is: 102,783.70
Step by Step Solution
- Step 1: Write the proportion equation
113,270.68 : 156,278.91 = 74,497.45 : x - Step 2: Convert to fraction form
113,270.68/156,278.91 = 74,497.45/x - Step 3: Cross multiply
113,270.68x = 156,278.91 × 74,497.45 - Step 4: Simplify right side
113,270.68x = 11,642,379,893.08 - Step 5: Solve for x
x = 11,642,379,893.08/113,270.68 - Step 6: Final answer
x = 102,783.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.