Finding the Fourth Proportional to 70,984.96, 106,295.58 and 68,882.68
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Solution
The fourth proportional to 70,984.96, 106,295.58 and 68,882.68 is: 103,147.55
Step by Step Solution
- Step 1: Write the proportion equation
70,984.96 : 106,295.58 = 68,882.68 : x - Step 2: Convert to fraction form
70,984.96/106,295.58 = 68,882.68/x - Step 3: Cross multiply
70,984.96x = 106,295.58 × 68,882.68 - Step 4: Simplify right side
70,984.96x = 7,321,924,422.55 - Step 5: Solve for x
x = 7,321,924,422.55/70,984.96 - Step 6: Final answer
x = 103,147.55
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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.