Finding the Fourth Proportional to 100,096.79, 138,119.90 and 59,801.99
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Solution
The fourth proportional to 100,096.79, 138,119.90 and 59,801.99 is: 82,518.57
Step by Step Solution
- Step 1: Write the proportion equation
100,096.79 : 138,119.90 = 59,801.99 : x - Step 2: Convert to fraction form
100,096.79/138,119.90 = 59,801.99/x - Step 3: Cross multiply
100,096.79x = 138,119.90 × 59,801.99 - Step 4: Simplify right side
100,096.79x = 8,259,843,888.99 - Step 5: Solve for x
x = 8,259,843,888.99/100,096.79 - Step 6: Final answer
x = 82,518.57
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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.