Finding the Fourth Proportional to 120,602.68, 166,432.08 and 66,892.68
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Solution
The fourth proportional to 120,602.68, 166,432.08 and 66,892.68 is: 92,312.11
Step by Step Solution
- Step 1: Write the proportion equation
120,602.68 : 166,432.08 = 66,892.68 : x - Step 2: Convert to fraction form
120,602.68/166,432.08 = 66,892.68/x - Step 3: Cross multiply
120,602.68x = 166,432.08 × 66,892.68 - Step 4: Simplify right side
120,602.68x = 11,133,087,869.17 - Step 5: Solve for x
x = 11,133,087,869.17/120,602.68 - Step 6: Final answer
x = 92,312.11
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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.