Finding the Fourth Proportional to 100,246.36, 138,339.96 and 54,926.06
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Solution
The fourth proportional to 100,246.36, 138,339.96 and 54,926.06 is: 75,797.95
Step by Step Solution
- Step 1: Write the proportion equation
100,246.36 : 138,339.96 = 54,926.06 : x - Step 2: Convert to fraction form
100,246.36/138,339.96 = 54,926.06/x - Step 3: Cross multiply
100,246.36x = 138,339.96 × 54,926.06 - Step 4: Simplify right side
100,246.36x = 7,598,468,943.36 - Step 5: Solve for x
x = 7,598,468,943.36/100,246.36 - Step 6: Final answer
x = 75,797.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.