Finding the Fourth Proportional to 122,118.99, 168,440.06 and 85,897.26
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Solution
The fourth proportional to 122,118.99, 168,440.06 and 85,897.26 is: 118,479.03
Step by Step Solution
- Step 1: Write the proportion equation
122,118.99 : 168,440.06 = 85,897.26 : x - Step 2: Convert to fraction form
122,118.99/168,440.06 = 85,897.26/x - Step 3: Cross multiply
122,118.99x = 168,440.06 × 85,897.26 - Step 4: Simplify right side
122,118.99x = 14,468,539,198.75 - Step 5: Solve for x
x = 14,468,539,198.75/122,118.99 - Step 6: Final answer
x = 118,479.03
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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.