Finding the Fourth Proportional to 115,868.70, 173,503.35 and 97,103.70
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Solution
The fourth proportional to 115,868.70, 173,503.35 and 97,103.70 is: 145,404.39
Step by Step Solution
- Step 1: Write the proportion equation
115,868.70 : 173,503.35 = 97,103.70 : x - Step 2: Convert to fraction form
115,868.70/173,503.35 = 97,103.70/x - Step 3: Cross multiply
115,868.70x = 173,503.35 × 97,103.70 - Step 4: Simplify right side
115,868.70x = 16,847,817,247.40 - Step 5: Solve for x
x = 16,847,817,247.40/115,868.70 - Step 6: Final answer
x = 145,404.39
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1.5x scale
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.