Finding the Fourth Proportional to 135,955.20, 187,565.82 and 100,230.14
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Solution
The fourth proportional to 135,955.20, 187,565.82 and 100,230.14 is: 138,278.99
Step by Step Solution
- Step 1: Write the proportion equation
135,955.20 : 187,565.82 = 100,230.14 : x - Step 2: Convert to fraction form
135,955.20/187,565.82 = 100,230.14/x - Step 3: Cross multiply
135,955.20x = 187,565.82 × 100,230.14 - Step 4: Simplify right side
135,955.20x = 18,799,748,397.81 - Step 5: Solve for x
x = 18,799,748,397.81/135,955.20 - Step 6: Final answer
x = 138,278.99
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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.