Finding the Fourth Proportional to 161,778.79, 223,255.47 and 93,835.99
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Solution
The fourth proportional to 161,778.79, 223,255.47 and 93,835.99 is: 129,494.09
Step by Step Solution
- Step 1: Write the proportion equation
161,778.79 : 223,255.47 = 93,835.99 : x - Step 2: Convert to fraction form
161,778.79/223,255.47 = 93,835.99/x - Step 3: Cross multiply
161,778.79x = 223,255.47 × 93,835.99 - Step 4: Simplify right side
161,778.79x = 20,949,396,464.91 - Step 5: Solve for x
x = 20,949,396,464.91/161,778.79 - Step 6: Final answer
x = 129,494.09
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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.