Finding the Fourth Proportional to 187,984.13, 259,430.39 and 103,101.19
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Solution
The fourth proportional to 187,984.13, 259,430.39 and 103,101.19 is: 142,286.39
Step by Step Solution
- Step 1: Write the proportion equation
187,984.13 : 259,430.39 = 103,101.19 : x - Step 2: Convert to fraction form
187,984.13/259,430.39 = 103,101.19/x - Step 3: Cross multiply
187,984.13x = 259,430.39 × 103,101.19 - Step 4: Simplify right side
187,984.13x = 26,747,581,733.66 - Step 5: Solve for x
x = 26,747,581,733.66/187,984.13 - Step 6: Final answer
x = 142,286.39
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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.