Finding the Fourth Proportional to 122,298.20, 168,779.58 and 68,586.68
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Solution
The fourth proportional to 122,298.20, 168,779.58 and 68,586.68 is: 94,654.14
Step by Step Solution
- Step 1: Write the proportion equation
122,298.20 : 168,779.58 = 68,586.68 : x - Step 2: Convert to fraction form
122,298.20/168,779.58 = 68,586.68/x - Step 3: Cross multiply
122,298.20x = 168,779.58 × 68,586.68 - Step 4: Simplify right side
122,298.20x = 11,576,031,043.99 - Step 5: Solve for x
x = 11,576,031,043.99/122,298.20 - Step 6: Final answer
x = 94,654.14
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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.