Finding the Fourth Proportional to 113,202.69, 156,221.13 and 62,220.99
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Solution
The fourth proportional to 113,202.69, 156,221.13 and 62,220.99 is: 85,865.75
Step by Step Solution
- Step 1: Write the proportion equation
113,202.69 : 156,221.13 = 62,220.99 : x - Step 2: Convert to fraction form
113,202.69/156,221.13 = 62,220.99/x - Step 3: Cross multiply
113,202.69x = 156,221.13 × 62,220.99 - Step 4: Simplify right side
113,202.69x = 9,720,233,367.52 - Step 5: Solve for x
x = 9,720,233,367.52/113,202.69 - Step 6: Final answer
x = 85,865.75
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1.5x scale
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.