Finding the Fourth Proportional to 145,888.38, 201,201.84 and 100,638.54
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Solution
The fourth proportional to 145,888.38, 201,201.84 and 100,638.54 is: 138,795.56
Step by Step Solution
- Step 1: Write the proportion equation
145,888.38 : 201,201.84 = 100,638.54 : x - Step 2: Convert to fraction form
145,888.38/201,201.84 = 100,638.54/x - Step 3: Cross multiply
145,888.38x = 201,201.84 × 100,638.54 - Step 4: Simplify right side
145,888.38x = 20,248,659,422.91 - Step 5: Solve for x
x = 20,248,659,422.91/145,888.38 - Step 6: Final answer
x = 138,795.56
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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.