Finding the Fourth Proportional to 138,342.59, 207,513.93 and 106,798.70
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Solution
The fourth proportional to 138,342.59, 207,513.93 and 106,798.70 is: 160,198.07
Step by Step Solution
- Step 1: Write the proportion equation
138,342.59 : 207,513.93 = 106,798.70 : x - Step 2: Convert to fraction form
138,342.59/207,513.93 = 106,798.70/x - Step 3: Cross multiply
138,342.59x = 207,513.93 × 106,798.70 - Step 4: Simplify right side
138,342.59x = 22,162,216,918.32 - Step 5: Solve for x
x = 22,162,216,918.32/138,342.59 - Step 6: Final answer
x = 160,198.07
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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.