Finding the Fourth Proportional to 124,442.86, 186,724.36 and 61,228.70
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Solution
The fourth proportional to 124,442.86, 186,724.36 and 61,228.70 is: 91,872.61
Step by Step Solution
- Step 1: Write the proportion equation
124,442.86 : 186,724.36 = 61,228.70 : x - Step 2: Convert to fraction form
124,442.86/186,724.36 = 61,228.70/x - Step 3: Cross multiply
124,442.86x = 186,724.36 × 61,228.70 - Step 4: Simplify right side
124,442.86x = 11,432,889,821.13 - Step 5: Solve for x
x = 11,432,889,821.13/124,442.86 - Step 6: Final answer
x = 91,872.61
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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.