Finding the Fourth Proportional to 124,643.62, 186,854.28 and 45,739.54
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Solution
The fourth proportional to 124,643.62, 186,854.28 and 45,739.54 is: 68,568.52
Step by Step Solution
- Step 1: Write the proportion equation
124,643.62 : 186,854.28 = 45,739.54 : x - Step 2: Convert to fraction form
124,643.62/186,854.28 = 45,739.54/x - Step 3: Cross multiply
124,643.62x = 186,854.28 × 45,739.54 - Step 4: Simplify right side
124,643.62x = 8,546,628,814.23 - Step 5: Solve for x
x = 8,546,628,814.23/124,643.62 - Step 6: Final answer
x = 68,568.52
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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.