Finding the Fourth Proportional to 187,673.81, 258,990.55 and 101,632.84
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Solution
The fourth proportional to 187,673.81, 258,990.55 and 101,632.84 is: 140,253.69
Step by Step Solution
- Step 1: Write the proportion equation
187,673.81 : 258,990.55 = 101,632.84 : x - Step 2: Convert to fraction form
187,673.81/258,990.55 = 101,632.84/x - Step 3: Cross multiply
187,673.81x = 258,990.55 × 101,632.84 - Step 4: Simplify right side
187,673.81x = 26,321,944,228.10 - Step 5: Solve for x
x = 26,321,944,228.10/187,673.81 - Step 6: Final answer
x = 140,253.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.