Finding the Fourth Proportional to 107,512.20, 147,975.12 and 94,681.49
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Solution
The fourth proportional to 107,512.20, 147,975.12 and 94,681.49 is: 130,315.48
Step by Step Solution
- Step 1: Write the proportion equation
107,512.20 : 147,975.12 = 94,681.49 : x - Step 2: Convert to fraction form
107,512.20/147,975.12 = 94,681.49/x - Step 3: Cross multiply
107,512.20x = 147,975.12 × 94,681.49 - Step 4: Simplify right side
107,512.20x = 14,010,504,104.65 - Step 5: Solve for x
x = 14,010,504,104.65/107,512.20 - Step 6: Final answer
x = 130,315.48
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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.