Finding the Fourth Proportional to 124,482.80, 186,286.80 and 85,116.80
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Solution
The fourth proportional to 124,482.80, 186,286.80 and 85,116.80 is: 127,376.12
Step by Step Solution
- Step 1: Write the proportion equation
124,482.80 : 186,286.80 = 85,116.80 : x - Step 2: Convert to fraction form
124,482.80/186,286.80 = 85,116.80/x - Step 3: Cross multiply
124,482.80x = 186,286.80 × 85,116.80 - Step 4: Simplify right side
124,482.80x = 15,856,136,298.24 - Step 5: Solve for x
x = 15,856,136,298.24/124,482.80 - Step 6: Final answer
x = 127,376.12
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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.