Finding the Fourth Proportional to 124,467.12, 186,706.80 and 74,865.96
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Solution
The fourth proportional to 124,467.12, 186,706.80 and 74,865.96 is: 112,302.62
Step by Step Solution
- Step 1: Write the proportion equation
124,467.12 : 186,706.80 = 74,865.96 : x - Step 2: Convert to fraction form
124,467.12/186,706.80 = 74,865.96/x - Step 3: Cross multiply
124,467.12x = 186,706.80 × 74,865.96 - Step 4: Simplify right side
124,467.12x = 13,977,983,820.53 - Step 5: Solve for x
x = 13,977,983,820.53/124,467.12 - Step 6: Final answer
x = 112,302.62
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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.