Finding the Fourth Proportional to 125,637.80, 188,456.70 and 42,531.80
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Solution
The fourth proportional to 125,637.80, 188,456.70 and 42,531.80 is: 63,797.70
Step by Step Solution
- Step 1: Write the proportion equation
125,637.80 : 188,456.70 = 42,531.80 : x - Step 2: Convert to fraction form
125,637.80/188,456.70 = 42,531.80/x - Step 3: Cross multiply
125,637.80x = 188,456.70 × 42,531.80 - Step 4: Simplify right side
125,637.80x = 8,015,402,673.06 - Step 5: Solve for x
x = 8,015,402,673.06/125,637.80 - Step 6: Final answer
x = 63,797.70
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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.