Finding the Fourth Proportional to 128,393.04, 192,561.08 and 93,349.20
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Solution
The fourth proportional to 128,393.04, 192,561.08 and 93,349.20 is: 140,003.09
Step by Step Solution
- Step 1: Write the proportion equation
128,393.04 : 192,561.08 = 93,349.20 : x - Step 2: Convert to fraction form
128,393.04/192,561.08 = 93,349.20/x - Step 3: Cross multiply
128,393.04x = 192,561.08 × 93,349.20 - Step 4: Simplify right side
128,393.04x = 17,975,422,769.14 - Step 5: Solve for x
x = 17,975,422,769.14/128,393.04 - Step 6: Final answer
x = 140,003.09
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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.