Finding the Fourth Proportional to 146,699.20, 202,444.14 and 79,631.20
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Solution
The fourth proportional to 146,699.20, 202,444.14 and 79,631.20 is: 109,890.65
Step by Step Solution
- Step 1: Write the proportion equation
146,699.20 : 202,444.14 = 79,631.20 : x - Step 2: Convert to fraction form
146,699.20/202,444.14 = 79,631.20/x - Step 3: Cross multiply
146,699.20x = 202,444.14 × 79,631.20 - Step 4: Simplify right side
146,699.20x = 16,120,869,801.17 - Step 5: Solve for x
x = 16,120,869,801.17/146,699.20 - Step 6: Final answer
x = 109,890.65
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.