Finding the Fourth Proportional to 122,959.40, 184,439.10 and 122,181.80
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Solution
The fourth proportional to 122,959.40, 184,439.10 and 122,181.80 is: 183,272.70
Step by Step Solution
- Step 1: Write the proportion equation
122,959.40 : 184,439.10 = 122,181.80 : x - Step 2: Convert to fraction form
122,959.40/184,439.10 = 122,181.80/x - Step 3: Cross multiply
122,959.40x = 184,439.10 × 122,181.80 - Step 4: Simplify right side
122,959.40x = 22,535,101,228.38 - Step 5: Solve for x
x = 22,535,101,228.38/122,959.40 - Step 6: Final answer
x = 183,272.70
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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.