Finding the Fourth Proportional to 134,898.68, 186,162.90 and 74,469.08
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Solution
The fourth proportional to 134,898.68, 186,162.90 and 74,469.08 is: 102,768.83
Step by Step Solution
- Step 1: Write the proportion equation
134,898.68 : 186,162.90 = 74,469.08 : x - Step 2: Convert to fraction form
134,898.68/186,162.90 = 74,469.08/x - Step 3: Cross multiply
134,898.68x = 186,162.90 × 74,469.08 - Step 4: Simplify right side
134,898.68x = 13,863,379,893.13 - Step 5: Solve for x
x = 13,863,379,893.13/134,898.68 - Step 6: Final answer
x = 102,768.83
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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.