Finding the Fourth Proportional to 146,226.20, 201,792.80 and 79,158.20
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Solution
The fourth proportional to 146,226.20, 201,792.80 and 79,158.20 is: 109,238.66
Step by Step Solution
- Step 1: Write the proportion equation
146,226.20 : 201,792.80 = 79,158.20 : x - Step 2: Convert to fraction form
146,226.20/201,792.80 = 79,158.20/x - Step 3: Cross multiply
146,226.20x = 201,792.80 × 79,158.20 - Step 4: Simplify right side
146,226.20x = 15,973,554,820.96 - Step 5: Solve for x
x = 15,973,554,820.96/146,226.20 - Step 6: Final answer
x = 109,238.66
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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.