Finding the Fourth Proportional to 142,125.84, 213,114.24 and 70,972.20
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Solution
The fourth proportional to 142,125.84, 213,114.24 and 70,972.20 is: 106,421.09
Step by Step Solution
- Step 1: Write the proportion equation
142,125.84 : 213,114.24 = 70,972.20 : x - Step 2: Convert to fraction form
142,125.84/213,114.24 = 70,972.20/x - Step 3: Cross multiply
142,125.84x = 213,114.24 × 70,972.20 - Step 4: Simplify right side
142,125.84x = 15,125,186,464.13 - Step 5: Solve for x
x = 15,125,186,464.13/142,125.84 - Step 6: Final answer
x = 106,421.09
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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.