Finding the Fourth Proportional to 101,121.55, 139,575.50 and 58,693.75
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Solution
The fourth proportional to 101,121.55, 139,575.50 and 58,693.75 is: 81,013.49
Step by Step Solution
- Step 1: Write the proportion equation
101,121.55 : 139,575.50 = 58,693.75 : x - Step 2: Convert to fraction form
101,121.55/139,575.50 = 58,693.75/x - Step 3: Cross multiply
101,121.55x = 139,575.50 × 58,693.75 - Step 4: Simplify right side
101,121.55x = 8,192,209,503.13 - Step 5: Solve for x
x = 8,192,209,503.13/101,121.55 - Step 6: Final answer
x = 81,013.49
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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.