Finding the Fourth Proportional to 128,265.06, 192,400.95 and 60,781.26
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Solution
The fourth proportional to 128,265.06, 192,400.95 and 60,781.26 is: 91,173.48
Step by Step Solution
- Step 1: Write the proportion equation
128,265.06 : 192,400.95 = 60,781.26 : x - Step 2: Convert to fraction form
128,265.06/192,400.95 = 60,781.26/x - Step 3: Cross multiply
128,265.06x = 192,400.95 × 60,781.26 - Step 4: Simplify right side
128,265.06x = 11,694,372,166.20 - Step 5: Solve for x
x = 11,694,372,166.20/128,265.06 - Step 6: Final answer
x = 91,173.48
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.