Finding the Fourth Proportional to 112,670.07, 155,304.99 and 76,360.20
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Solution
The fourth proportional to 112,670.07, 155,304.99 and 76,360.20 is: 105,255.28
Step by Step Solution
- Step 1: Write the proportion equation
112,670.07 : 155,304.99 = 76,360.20 : x - Step 2: Convert to fraction form
112,670.07/155,304.99 = 76,360.20/x - Step 3: Cross multiply
112,670.07x = 155,304.99 × 76,360.20 - Step 4: Simplify right side
112,670.07x = 11,859,120,097.40 - Step 5: Solve for x
x = 11,859,120,097.40/112,670.07 - Step 6: Final answer
x = 105,255.28
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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.