Finding the Fourth Proportional to 125,513.70, 188,270.55 and 42,407.70
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Solution
The fourth proportional to 125,513.70, 188,270.55 and 42,407.70 is: 63,611.55
Step by Step Solution
- Step 1: Write the proportion equation
125,513.70 : 188,270.55 = 42,407.70 : x - Step 2: Convert to fraction form
125,513.70/188,270.55 = 42,407.70/x - Step 3: Cross multiply
125,513.70x = 188,270.55 × 42,407.70 - Step 4: Simplify right side
125,513.70x = 7,984,121,003.24 - Step 5: Solve for x
x = 7,984,121,003.24/125,513.70 - Step 6: Final answer
x = 63,611.55
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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.