Finding the Fourth Proportional to 146,547.20, 202,236.42 and 79,479.20
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Solution
The fourth proportional to 146,547.20, 202,236.42 and 79,479.20 is: 109,681.99
Step by Step Solution
- Step 1: Write the proportion equation
146,547.20 : 202,236.42 = 79,479.20 : x - Step 2: Convert to fraction form
146,547.20/202,236.42 = 79,479.20/x - Step 3: Cross multiply
146,547.20x = 202,236.42 × 79,479.20 - Step 4: Simplify right side
146,547.20x = 16,073,588,872.46 - Step 5: Solve for x
x = 16,073,588,872.46/146,547.20 - Step 6: Final answer
x = 109,681.99
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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.