Finding the Fourth Proportional to 122,217.63, 168,659.79 and 68,502.65
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Solution
The fourth proportional to 122,217.63, 168,659.79 and 68,502.65 is: 94,533.35
Step by Step Solution
- Step 1: Write the proportion equation
122,217.63 : 168,659.79 = 68,502.65 : x - Step 2: Convert to fraction form
122,217.63/168,659.79 = 68,502.65/x - Step 3: Cross multiply
122,217.63x = 168,659.79 × 68,502.65 - Step 4: Simplify right side
122,217.63x = 11,553,641,463.26 - Step 5: Solve for x
x = 11,553,641,463.26/122,217.63 - Step 6: Final answer
x = 94,533.35
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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.