Finding the Fourth Proportional to 106,810.05, 160,310.12 and 56,931.33
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Solution
The fourth proportional to 106,810.05, 160,310.12 and 56,931.33 is: 85,447.65
Step by Step Solution
- Step 1: Write the proportion equation
106,810.05 : 160,310.12 = 56,931.33 : x - Step 2: Convert to fraction form
106,810.05/160,310.12 = 56,931.33/x - Step 3: Cross multiply
106,810.05x = 160,310.12 × 56,931.33 - Step 4: Simplify right side
106,810.05x = 9,126,668,059.40 - Step 5: Solve for x
x = 9,126,668,059.40/106,810.05 - Step 6: Final answer
x = 85,447.65
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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.