Finding the Fourth Proportional to 138,607.62, 207,937.06 and 43,861.65
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Solution
The fourth proportional to 138,607.62, 207,937.06 and 43,861.65 is: 65,800.59
Step by Step Solution
- Step 1: Write the proportion equation
138,607.62 : 207,937.06 = 43,861.65 : x - Step 2: Convert to fraction form
138,607.62/207,937.06 = 43,861.65/x - Step 3: Cross multiply
138,607.62x = 207,937.06 × 43,861.65 - Step 4: Simplify right side
138,607.62x = 9,120,462,735.46 - Step 5: Solve for x
x = 9,120,462,735.46/138,607.62 - Step 6: Final answer
x = 65,800.59
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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.