Finding the Fourth Proportional to 122,271.38, 168,764.49 and 74,551.02
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Solution
The fourth proportional to 122,271.38, 168,764.49 and 74,551.02 is: 102,898.69
Step by Step Solution
- Step 1: Write the proportion equation
122,271.38 : 168,764.49 = 74,551.02 : x - Step 2: Convert to fraction form
122,271.38/168,764.49 = 74,551.02/x - Step 3: Cross multiply
122,271.38x = 168,764.49 × 74,551.02 - Step 4: Simplify right side
122,271.38x = 12,581,564,869.28 - Step 5: Solve for x
x = 12,581,564,869.28/122,271.38 - Step 6: Final answer
x = 102,898.69
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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.