Finding the Fourth Proportional to 165,012.81, 247,479.56 and 76,180.99
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Solution
The fourth proportional to 165,012.81, 247,479.56 and 76,180.99 is: 114,253.18
Step by Step Solution
- Step 1: Write the proportion equation
165,012.81 : 247,479.56 = 76,180.99 : x - Step 2: Convert to fraction form
165,012.81/247,479.56 = 76,180.99/x - Step 3: Cross multiply
165,012.81x = 247,479.56 × 76,180.99 - Step 4: Simplify right side
165,012.81x = 18,853,237,885.56 - Step 5: Solve for x
x = 18,853,237,885.56/165,012.81 - Step 6: Final answer
x = 114,253.18
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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.