Finding the Fourth Proportional to 138,110.56, 207,170.29 and 38,271.71
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Solution
The fourth proportional to 138,110.56, 207,170.29 and 38,271.71 is: 57,408.80
Step by Step Solution
- Step 1: Write the proportion equation
138,110.56 : 207,170.29 = 38,271.71 : x - Step 2: Convert to fraction form
138,110.56/207,170.29 = 38,271.71/x - Step 3: Cross multiply
138,110.56x = 207,170.29 × 38,271.71 - Step 4: Simplify right side
138,110.56x = 7,928,761,873.10 - Step 5: Solve for x
x = 7,928,761,873.10/138,110.56 - Step 6: Final answer
x = 57,408.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.