Finding the Fourth Proportional to 121,511.10, 170,290.50 and 121,511.10
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Solution
The fourth proportional to 121,511.10, 170,290.50 and 121,511.10 is: 170,290.50
Step by Step Solution
- Step 1: Write the proportion equation
121,511.10 : 170,290.50 = 121,511.10 : x - Step 2: Convert to fraction form
121,511.10/170,290.50 = 121,511.10/x - Step 3: Cross multiply
121,511.10x = 170,290.50 × 121,511.10 - Step 4: Simplify right side
121,511.10x = 20,692,185,974.55 - Step 5: Solve for x
x = 20,692,185,974.55/121,511.10 - Step 6: Final answer
x = 170,290.50
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.