Finding the Fourth Proportional to 103,893.62, 143,373.21 and 56,146.88
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Solution
The fourth proportional to 103,893.62, 143,373.21 and 56,146.88 is: 77,482.70
Step by Step Solution
- Step 1: Write the proportion equation
103,893.62 : 143,373.21 = 56,146.88 : x - Step 2: Convert to fraction form
103,893.62/143,373.21 = 56,146.88/x - Step 3: Cross multiply
103,893.62x = 143,373.21 × 56,146.88 - Step 4: Simplify right side
103,893.62x = 8,049,958,417.08 - Step 5: Solve for x
x = 8,049,958,417.08/103,893.62 - Step 6: Final answer
x = 77,482.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.