Finding the Fourth Proportional to 145,653.99, 218,480.99 and 83,280.75
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Solution
The fourth proportional to 145,653.99, 218,480.99 and 83,280.75 is: 124,921.13
Step by Step Solution
- Step 1: Write the proportion equation
145,653.99 : 218,480.99 = 83,280.75 : x - Step 2: Convert to fraction form
145,653.99/218,480.99 = 83,280.75/x - Step 3: Cross multiply
145,653.99x = 218,480.99 × 83,280.75 - Step 4: Simplify right side
145,653.99x = 18,195,260,291.54 - Step 5: Solve for x
x = 18,195,260,291.54/145,653.99 - Step 6: Final answer
x = 124,921.13
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Similar ratio
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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.