Finding the Fourth Proportional to 122,369.91, 168,873.08 and 68,658.81
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Solution
The fourth proportional to 122,369.91, 168,873.08 and 68,658.81 is: 94,750.62
Step by Step Solution
- Step 1: Write the proportion equation
122,369.91 : 168,873.08 = 68,658.81 : x - Step 2: Convert to fraction form
122,369.91/168,873.08 = 68,658.81/x - Step 3: Cross multiply
122,369.91x = 168,873.08 × 68,658.81 - Step 4: Simplify right side
122,369.91x = 11,594,624,370.54 - Step 5: Solve for x
x = 11,594,624,370.54/122,369.91 - Step 6: Final answer
x = 94,750.62
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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.