Finding the Fourth Proportional to 68,986.80, 103,399.20 and 68,248.08
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Solution
The fourth proportional to 68,986.80, 103,399.20 and 68,248.08 is: 102,291.99
Step by Step Solution
- Step 1: Write the proportion equation
68,986.80 : 103,399.20 = 68,248.08 : x - Step 2: Convert to fraction form
68,986.80/103,399.20 = 68,248.08/x - Step 3: Cross multiply
68,986.80x = 103,399.20 × 68,248.08 - Step 4: Simplify right side
68,986.80x = 7,056,796,873.54 - Step 5: Solve for x
x = 7,056,796,873.54/68,986.80 - Step 6: Final answer
x = 102,291.99
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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.