Finding the Fourth Proportional to 125,925.40, 188,888.10 and 102,305.80
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Solution
The fourth proportional to 125,925.40, 188,888.10 and 102,305.80 is: 153,458.70
Step by Step Solution
- Step 1: Write the proportion equation
125,925.40 : 188,888.10 = 102,305.80 : x - Step 2: Convert to fraction form
125,925.40/188,888.10 = 102,305.80/x - Step 3: Cross multiply
125,925.40x = 188,888.10 × 102,305.80 - Step 4: Simplify right side
125,925.40x = 19,324,348,180.98 - Step 5: Solve for x
x = 19,324,348,180.98/125,925.40 - Step 6: Final answer
x = 153,458.70
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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.