Finding the Fourth Proportional to 151,201.84, 208,631.64 and 87,536.56
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Solution
The fourth proportional to 151,201.84, 208,631.64 and 87,536.56 is: 120,784.88
Step by Step Solution
- Step 1: Write the proportion equation
151,201.84 : 208,631.64 = 87,536.56 : x - Step 2: Convert to fraction form
151,201.84/208,631.64 = 87,536.56/x - Step 3: Cross multiply
151,201.84x = 208,631.64 × 87,536.56 - Step 4: Simplify right side
151,201.84x = 18,262,896,072.76 - Step 5: Solve for x
x = 18,262,896,072.76/151,201.84 - Step 6: Final answer
x = 120,784.88
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1.5x scale
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.