Finding the Fourth Proportional to 138,202.21, 207,302.63 and 53,970.93
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Solution
The fourth proportional to 138,202.21, 207,302.63 and 53,970.93 is: 80,956.12
Step by Step Solution
- Step 1: Write the proportion equation
138,202.21 : 207,302.63 = 53,970.93 : x - Step 2: Convert to fraction form
138,202.21/207,302.63 = 53,970.93/x - Step 3: Cross multiply
138,202.21x = 207,302.63 × 53,970.93 - Step 4: Simplify right side
138,202.21x = 11,188,314,426.18 - Step 5: Solve for x
x = 11,188,314,426.18/138,202.21 - Step 6: Final answer
x = 80,956.12
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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.