Finding the Fourth Proportional to 128,480.24, 192,802.62 and 69,357.08
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Solution
The fourth proportional to 128,480.24, 192,802.62 and 69,357.08 is: 104,080.03
Step by Step Solution
- Step 1: Write the proportion equation
128,480.24 : 192,802.62 = 69,357.08 : x - Step 2: Convert to fraction form
128,480.24/192,802.62 = 69,357.08/x - Step 3: Cross multiply
128,480.24x = 192,802.62 × 69,357.08 - Step 4: Simplify right side
128,480.24x = 13,372,226,739.55 - Step 5: Solve for x
x = 13,372,226,739.55/128,480.24 - Step 6: Final answer
x = 104,080.03
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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.