Finding the Fourth Proportional to 68,720.16, 103,124.04 and 68,157.68
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Solution
The fourth proportional to 68,720.16, 103,124.04 and 68,157.68 is: 102,279.96
Step by Step Solution
- Step 1: Write the proportion equation
68,720.16 : 103,124.04 = 68,157.68 : x - Step 2: Convert to fraction form
68,720.16/103,124.04 = 68,157.68/x - Step 3: Cross multiply
68,720.16x = 103,124.04 × 68,157.68 - Step 4: Simplify right side
68,720.16x = 7,028,695,318.63 - Step 5: Solve for x
x = 7,028,695,318.63/68,720.16 - Step 6: Final answer
x = 102,279.96
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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.