Finding the Fourth Proportional to 146,225.74, 201,791.28 and 79,157.74
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Solution
The fourth proportional to 146,225.74, 201,791.28 and 79,157.74 is: 109,237.55
Step by Step Solution
- Step 1: Write the proportion equation
146,225.74 : 201,791.28 = 79,157.74 : x - Step 2: Convert to fraction form
146,225.74/201,791.28 = 79,157.74/x - Step 3: Cross multiply
146,225.74x = 201,791.28 × 79,157.74 - Step 4: Simplify right side
146,225.74x = 15,973,341,676.51 - Step 5: Solve for x
x = 15,973,341,676.51/146,225.74 - Step 6: Final answer
x = 109,237.55
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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.