Finding the Fourth Proportional to 103,451.80, 155,177.70 and 73,708.60
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Solution
The fourth proportional to 103,451.80, 155,177.70 and 73,708.60 is: 110,562.90
Step by Step Solution
- Step 1: Write the proportion equation
103,451.80 : 155,177.70 = 73,708.60 : x - Step 2: Convert to fraction form
103,451.80/155,177.70 = 73,708.60/x - Step 3: Cross multiply
103,451.80x = 155,177.70 × 73,708.60 - Step 4: Simplify right side
103,451.80x = 11,437,931,018.22 - Step 5: Solve for x
x = 11,437,931,018.22/103,451.80 - Step 6: Final answer
x = 110,562.90
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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.