Finding the Fourth Proportional to 147,545.31, 221,539.37 and 84,436.70
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Solution
The fourth proportional to 147,545.31, 221,539.37 and 84,436.70 is: 126,781.75
Step by Step Solution
- Step 1: Write the proportion equation
147,545.31 : 221,539.37 = 84,436.70 : x - Step 2: Convert to fraction form
147,545.31/221,539.37 = 84,436.70/x - Step 3: Cross multiply
147,545.31x = 221,539.37 × 84,436.70 - Step 4: Simplify right side
147,545.31x = 18,706,053,322.88 - Step 5: Solve for x
x = 18,706,053,322.88/147,545.31 - Step 6: Final answer
x = 126,781.75
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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.