Finding the Fourth Proportional to 143,364.60, 197,841.96 and 79,701.84
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Solution
The fourth proportional to 143,364.60, 197,841.96 and 79,701.84 is: 109,987.88
Step by Step Solution
- Step 1: Write the proportion equation
143,364.60 : 197,841.96 = 79,701.84 : x - Step 2: Convert to fraction form
143,364.60/197,841.96 = 79,701.84/x - Step 3: Cross multiply
143,364.60x = 197,841.96 × 79,701.84 - Step 4: Simplify right side
143,364.60x = 15,768,368,241.21 - Step 5: Solve for x
x = 15,768,368,241.21/143,364.60 - Step 6: Final answer
x = 109,987.88
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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.