Finding the Fourth Proportional to 151,145.76, 208,599.12 and 86,638.08
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Solution
The fourth proportional to 151,145.76, 208,599.12 and 86,638.08 is: 119,570.85
Step by Step Solution
- Step 1: Write the proportion equation
151,145.76 : 208,599.12 = 86,638.08 : x - Step 2: Convert to fraction form
151,145.76/208,599.12 = 86,638.08/x - Step 3: Cross multiply
151,145.76x = 208,599.12 × 86,638.08 - Step 4: Simplify right side
151,145.76x = 18,072,627,246.49 - Step 5: Solve for x
x = 18,072,627,246.49/151,145.76 - Step 6: Final answer
x = 119,570.85
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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.