Finding the Fourth Proportional to 125,139.18, 187,707.19 and 30,370.14
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Solution
The fourth proportional to 125,139.18, 187,707.19 and 30,370.14 is: 45,554.83
Step by Step Solution
- Step 1: Write the proportion equation
125,139.18 : 187,707.19 = 30,370.14 : x - Step 2: Convert to fraction form
125,139.18/187,707.19 = 30,370.14/x - Step 3: Cross multiply
125,139.18x = 187,707.19 × 30,370.14 - Step 4: Simplify right side
125,139.18x = 5,700,693,639.31 - Step 5: Solve for x
x = 5,700,693,639.31/125,139.18 - Step 6: Final answer
x = 45,554.83
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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.