Finding the Fourth Proportional to 149,358.05, 206,115.93 and 85,701.77
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Solution
The fourth proportional to 149,358.05, 206,115.93 and 85,701.77 is: 118,269.49
Step by Step Solution
- Step 1: Write the proportion equation
149,358.05 : 206,115.93 = 85,701.77 : x - Step 2: Convert to fraction form
149,358.05/206,115.93 = 85,701.77/x - Step 3: Cross multiply
149,358.05x = 206,115.93 × 85,701.77 - Step 4: Simplify right side
149,358.05x = 17,664,500,026.20 - Step 5: Solve for x
x = 17,664,500,026.20/149,358.05 - Step 6: Final answer
x = 118,269.49
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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.