Finding the Fourth Proportional to 147,764.21, 221,974.36 and 91,645.79
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Solution
The fourth proportional to 147,764.21, 221,974.36 and 91,645.79 is: 137,672.14
Step by Step Solution
- Step 1: Write the proportion equation
147,764.21 : 221,974.36 = 91,645.79 : x - Step 2: Convert to fraction form
147,764.21/221,974.36 = 91,645.79/x - Step 3: Cross multiply
147,764.21x = 221,974.36 × 91,645.79 - Step 4: Simplify right side
147,764.21x = 20,343,014,242.96 - Step 5: Solve for x
x = 20,343,014,242.96/147,764.21 - Step 6: Final answer
x = 137,672.14
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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.