Finding the Fourth Proportional to 122,426.24, 168,964.70 and 68,714.19
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Solution
The fourth proportional to 122,426.24, 168,964.70 and 68,714.19 is: 94,834.84
Step by Step Solution
- Step 1: Write the proportion equation
122,426.24 : 168,964.70 = 68,714.19 : x - Step 2: Convert to fraction form
122,426.24/168,964.70 = 68,714.19/x - Step 3: Cross multiply
122,426.24x = 168,964.70 × 68,714.19 - Step 4: Simplify right side
122,426.24x = 11,610,272,499.09 - Step 5: Solve for x
x = 11,610,272,499.09/122,426.24 - Step 6: Final answer
x = 94,834.84
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1.5x scale
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.