Finding the Fourth Proportional to 115,903.20, 173,854.80 and 41,107.80
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Solution
The fourth proportional to 115,903.20, 173,854.80 and 41,107.80 is: 61,661.70
Step by Step Solution
- Step 1: Write the proportion equation
115,903.20 : 173,854.80 = 41,107.80 : x - Step 2: Convert to fraction form
115,903.20/173,854.80 = 41,107.80/x - Step 3: Cross multiply
115,903.20x = 173,854.80 × 41,107.80 - Step 4: Simplify right side
115,903.20x = 7,146,788,347.44 - Step 5: Solve for x
x = 7,146,788,347.44/115,903.20 - Step 6: Final answer
x = 61,661.70
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1.5x scale
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.