Finding the Fourth Proportional to 165,011.81, 247,478.06 and 76,179.99
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Solution
The fourth proportional to 165,011.81, 247,478.06 and 76,179.99 is: 114,251.68
Step by Step Solution
- Step 1: Write the proportion equation
165,011.81 : 247,478.06 = 76,179.99 : x - Step 2: Convert to fraction form
165,011.81/247,478.06 = 76,179.99/x - Step 3: Cross multiply
165,011.81x = 247,478.06 × 76,179.99 - Step 4: Simplify right side
165,011.81x = 18,852,876,136.02 - Step 5: Solve for x
x = 18,852,876,136.02/165,011.81 - Step 6: Final answer
x = 114,251.68
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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.