Finding the Fourth Proportional to 147,914.70, 221,872.05 and 102,643.80
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Solution
The fourth proportional to 147,914.70, 221,872.05 and 102,643.80 is: 153,965.70
Step by Step Solution
- Step 1: Write the proportion equation
147,914.70 : 221,872.05 = 102,643.80 : x - Step 2: Convert to fraction form
147,914.70/221,872.05 = 102,643.80/x - Step 3: Cross multiply
147,914.70x = 221,872.05 × 102,643.80 - Step 4: Simplify right side
147,914.70x = 22,773,790,325.79 - Step 5: Solve for x
x = 22,773,790,325.79/147,914.70 - Step 6: Final answer
x = 153,965.70
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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.