Finding the Fourth Proportional to 138,020.70, 207,030.99 and 44,526.45
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Solution
The fourth proportional to 138,020.70, 207,030.99 and 44,526.45 is: 66,789.66
Step by Step Solution
- Step 1: Write the proportion equation
138,020.70 : 207,030.99 = 44,526.45 : x - Step 2: Convert to fraction form
138,020.70/207,030.99 = 44,526.45/x - Step 3: Cross multiply
138,020.70x = 207,030.99 × 44,526.45 - Step 4: Simplify right side
138,020.70x = 9,218,355,024.69 - Step 5: Solve for x
x = 9,218,355,024.69/138,020.70 - Step 6: Final answer
x = 66,789.66
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1.5x scale
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.