Finding the Fourth Proportional to 110,979.75, 153,152.06 and 60,678.75
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Solution
The fourth proportional to 110,979.75, 153,152.06 and 60,678.75 is: 83,736.68
Step by Step Solution
- Step 1: Write the proportion equation
110,979.75 : 153,152.06 = 60,678.75 : x - Step 2: Convert to fraction form
110,979.75/153,152.06 = 60,678.75/x - Step 3: Cross multiply
110,979.75x = 153,152.06 × 60,678.75 - Step 4: Simplify right side
110,979.75x = 9,293,075,257.33 - Step 5: Solve for x
x = 9,293,075,257.33/110,979.75 - Step 6: Final answer
x = 83,736.68
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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.