Finding the Fourth Proportional to 187,798.51, 259,163.99 and 102,913.75
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Solution
The fourth proportional to 187,798.51, 259,163.99 and 102,913.75 is: 142,022.09
Step by Step Solution
- Step 1: Write the proportion equation
187,798.51 : 259,163.99 = 102,913.75 : x - Step 2: Convert to fraction form
187,798.51/259,163.99 = 102,913.75/x - Step 3: Cross multiply
187,798.51x = 259,163.99 × 102,913.75 - Step 4: Simplify right side
187,798.51x = 26,671,537,561.29 - Step 5: Solve for x
x = 26,671,537,561.29/187,798.51 - Step 6: Final answer
x = 142,022.09
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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.