Finding the Fourth Proportional to 137,947.37, 207,065.84 and 122,252.81
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Solution
The fourth proportional to 137,947.37, 207,065.84 and 122,252.81 is: 183,507.52
Step by Step Solution
- Step 1: Write the proportion equation
137,947.37 : 207,065.84 = 122,252.81 : x - Step 2: Convert to fraction form
137,947.37/207,065.84 = 122,252.81/x - Step 3: Cross multiply
137,947.37x = 207,065.84 × 122,252.81 - Step 4: Simplify right side
137,947.37x = 25,314,379,148.42 - Step 5: Solve for x
x = 25,314,379,148.42/137,947.37 - Step 6: Final answer
x = 183,507.52
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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.