Finding the Fourth Proportional to 124,467.20, 186,355.20 and 121,011.20
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Solution
The fourth proportional to 124,467.20, 186,355.20 and 121,011.20 is: 181,180.80
Step by Step Solution
- Step 1: Write the proportion equation
124,467.20 : 186,355.20 = 121,011.20 : x - Step 2: Convert to fraction form
124,467.20/186,355.20 = 121,011.20/x - Step 3: Cross multiply
124,467.20x = 186,355.20 × 121,011.20 - Step 4: Simplify right side
124,467.20x = 22,551,066,378.24 - Step 5: Solve for x
x = 22,551,066,378.24/124,467.20 - Step 6: Final answer
x = 181,180.80
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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.