Finding the Fourth Proportional to 122,009.52, 168,374.52 and 68,299.68
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Solution
The fourth proportional to 122,009.52, 168,374.52 and 68,299.68 is: 94,254.33
Step by Step Solution
- Step 1: Write the proportion equation
122,009.52 : 168,374.52 = 68,299.68 : x - Step 2: Convert to fraction form
122,009.52/168,374.52 = 68,299.68/x - Step 3: Cross multiply
122,009.52x = 168,374.52 × 68,299.68 - Step 4: Simplify right side
122,009.52x = 11,499,925,836.15 - Step 5: Solve for x
x = 11,499,925,836.15/122,009.52 - Step 6: Final answer
x = 94,254.33
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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.