Finding the Fourth Proportional to 124,737.28, 186,807.68 and 68,490.88
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Solution
The fourth proportional to 124,737.28, 186,807.68 and 68,490.88 is: 102,572.56
Step by Step Solution
- Step 1: Write the proportion equation
124,737.28 : 186,807.68 = 68,490.88 : x - Step 2: Convert to fraction form
124,737.28/186,807.68 = 68,490.88/x - Step 3: Cross multiply
124,737.28x = 186,807.68 × 68,490.88 - Step 4: Simplify right side
124,737.28x = 12,794,622,393.96 - Step 5: Solve for x
x = 12,794,622,393.96/124,737.28 - Step 6: Final answer
x = 102,572.56
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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.