Finding the Fourth Proportional to 112,875.28, 155,736.36 and 88,927.62
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Solution
The fourth proportional to 112,875.28, 155,736.36 and 88,927.62 is: 122,695.28
Step by Step Solution
- Step 1: Write the proportion equation
112,875.28 : 155,736.36 = 88,927.62 : x - Step 2: Convert to fraction form
112,875.28/155,736.36 = 88,927.62/x - Step 3: Cross multiply
112,875.28x = 155,736.36 × 88,927.62 - Step 4: Simplify right side
112,875.28x = 13,849,263,842.26 - Step 5: Solve for x
x = 13,849,263,842.26/112,875.28 - Step 6: Final answer
x = 122,695.28
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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.