Finding the Fourth Proportional to 159,316.49, 239,122.56 and 80,486.08
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Solution
The fourth proportional to 159,316.49, 239,122.56 and 80,486.08 is: 120,803.80
Step by Step Solution
- Step 1: Write the proportion equation
159,316.49 : 239,122.56 = 80,486.08 : x - Step 2: Convert to fraction form
159,316.49/239,122.56 = 80,486.08/x - Step 3: Cross multiply
159,316.49x = 239,122.56 × 80,486.08 - Step 4: Simplify right side
159,316.49x = 19,246,037,197.98 - Step 5: Solve for x
x = 19,246,037,197.98/159,316.49 - Step 6: Final answer
x = 120,803.80
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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.