Finding the Fourth Proportional to 92,299.20, 138,448.60 and 71,269.98
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Solution
The fourth proportional to 92,299.20, 138,448.60 and 71,269.98 is: 106,904.82
Step by Step Solution
- Step 1: Write the proportion equation
92,299.20 : 138,448.60 = 71,269.98 : x - Step 2: Convert to fraction form
92,299.20/138,448.60 = 71,269.98/x - Step 3: Cross multiply
92,299.20x = 138,448.60 × 71,269.98 - Step 4: Simplify right side
92,299.20x = 9,867,228,953.03 - Step 5: Solve for x
x = 9,867,228,953.03/92,299.20 - Step 6: Final answer
x = 106,904.82
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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.