Finding the Fourth Proportional to 138,169.75, 207,254.68 and 49,417.95
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Solution
The fourth proportional to 138,169.75, 207,254.68 and 49,417.95 is: 74,126.94
Step by Step Solution
- Step 1: Write the proportion equation
138,169.75 : 207,254.68 = 49,417.95 : x - Step 2: Convert to fraction form
138,169.75/207,254.68 = 49,417.95/x - Step 3: Cross multiply
138,169.75x = 207,254.68 × 49,417.95 - Step 4: Simplify right side
138,169.75x = 10,242,101,289.96 - Step 5: Solve for x
x = 10,242,101,289.96/138,169.75 - Step 6: Final answer
x = 74,126.94
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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.