Finding the Fourth Proportional to 145,830.97, 201,246.76 and 78,762.97
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Solution
The fourth proportional to 145,830.97, 201,246.76 and 78,762.97 is: 108,692.91
Step by Step Solution
- Step 1: Write the proportion equation
145,830.97 : 201,246.76 = 78,762.97 : x - Step 2: Convert to fraction form
145,830.97/201,246.76 = 78,762.97/x - Step 3: Cross multiply
145,830.97x = 201,246.76 × 78,762.97 - Step 4: Simplify right side
145,830.97x = 15,850,792,520.48 - Step 5: Solve for x
x = 15,850,792,520.48/145,830.97 - Step 6: Final answer
x = 108,692.91
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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.