Finding the Fourth Proportional to 187,658.09, 258,968.27 and 102,775.13
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Solution
The fourth proportional to 187,658.09, 258,968.27 and 102,775.13 is: 141,829.74
Step by Step Solution
- Step 1: Write the proportion equation
187,658.09 : 258,968.27 = 102,775.13 : x - Step 2: Convert to fraction form
187,658.09/258,968.27 = 102,775.13/x - Step 3: Cross multiply
187,658.09x = 258,968.27 × 102,775.13 - Step 4: Simplify right side
187,658.09x = 26,615,497,615.13 - Step 5: Solve for x
x = 26,615,497,615.13/187,658.09 - Step 6: Final answer
x = 141,829.74
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1.5x scale
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.