Finding the Fourth Proportional to 138,259.70, 207,422.35 and 44,765.45
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Solution
The fourth proportional to 138,259.70, 207,422.35 and 44,765.45 is: 67,158.79
Step by Step Solution
- Step 1: Write the proportion equation
138,259.70 : 207,422.35 = 44,765.45 : x - Step 2: Convert to fraction form
138,259.70/207,422.35 = 44,765.45/x - Step 3: Cross multiply
138,259.70x = 207,422.35 × 44,765.45 - Step 4: Simplify right side
138,259.70x = 9,285,353,576.87 - Step 5: Solve for x
x = 9,285,353,576.87/138,259.70 - Step 6: Final answer
x = 67,158.79
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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.