Finding the Fourth Proportional to 138,733.16, 208,109.14 and 48,764.94
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Solution
The fourth proportional to 138,733.16, 208,109.14 and 48,764.94 is: 73,150.71
Step by Step Solution
- Step 1: Write the proportion equation
138,733.16 : 208,109.14 = 48,764.94 : x - Step 2: Convert to fraction form
138,733.16/208,109.14 = 48,764.94/x - Step 3: Cross multiply
138,733.16x = 208,109.14 × 48,764.94 - Step 4: Simplify right side
138,733.16x = 10,148,429,725.55 - Step 5: Solve for x
x = 10,148,429,725.55/138,733.16 - Step 6: Final answer
x = 73,150.71
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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.