Finding the Fourth Proportional to 134,644.53, 185,810.69 and 74,217.49
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Solution
The fourth proportional to 134,644.53, 185,810.69 and 74,217.49 is: 102,420.82
Step by Step Solution
- Step 1: Write the proportion equation
134,644.53 : 185,810.69 = 74,217.49 : x - Step 2: Convert to fraction form
134,644.53/185,810.69 = 74,217.49/x - Step 3: Cross multiply
134,644.53x = 185,810.69 × 74,217.49 - Step 4: Simplify right side
134,644.53x = 13,790,403,909.30 - Step 5: Solve for x
x = 13,790,403,909.30/134,644.53 - Step 6: Final answer
x = 102,420.82
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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.