Finding the Fourth Proportional to 93,144.26, 128,294.21 and 71,592.80
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Solution
The fourth proportional to 93,144.26, 128,294.21 and 71,592.80 is: 98,609.84
Step by Step Solution
- Step 1: Write the proportion equation
93,144.26 : 128,294.21 = 71,592.80 : x - Step 2: Convert to fraction form
93,144.26/128,294.21 = 71,592.80/x - Step 3: Cross multiply
93,144.26x = 128,294.21 × 71,592.80 - Step 4: Simplify right side
93,144.26x = 9,184,941,255.20 - Step 5: Solve for x
x = 9,184,941,255.20/93,144.26 - Step 6: Final answer
x = 98,609.84
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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.