Finding the Fourth Proportional to 137,390.26, 189,432.66 and 106,772.26
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Solution
The fourth proportional to 137,390.26, 189,432.66 and 106,772.26 is: 147,216.79
Step by Step Solution
- Step 1: Write the proportion equation
137,390.26 : 189,432.66 = 106,772.26 : x - Step 2: Convert to fraction form
137,390.26/189,432.66 = 106,772.26/x - Step 3: Cross multiply
137,390.26x = 189,432.66 × 106,772.26 - Step 4: Simplify right side
137,390.26x = 20,226,153,226.01 - Step 5: Solve for x
x = 20,226,153,226.01/137,390.26 - Step 6: Final answer
x = 147,216.79
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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.