Finding the Fourth Proportional to 121,928.41, 182,655.99 and 89,849.28
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Solution
The fourth proportional to 121,928.41, 182,655.99 and 89,849.28 is: 134,599.55
Step by Step Solution
- Step 1: Write the proportion equation
121,928.41 : 182,655.99 = 89,849.28 : x - Step 2: Convert to fraction form
121,928.41/182,655.99 = 89,849.28/x - Step 3: Cross multiply
121,928.41x = 182,655.99 × 89,849.28 - Step 4: Simplify right side
121,928.41x = 16,411,509,189.19 - Step 5: Solve for x
x = 16,411,509,189.19/121,928.41 - Step 6: Final answer
x = 134,599.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.