Finding the Fourth Proportional to 139,944.60, 193,122.04 and 76,281.02
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Solution
The fourth proportional to 139,944.60, 193,122.04 and 76,281.02 is: 105,266.99
Step by Step Solution
- Step 1: Write the proportion equation
139,944.60 : 193,122.04 = 76,281.02 : x - Step 2: Convert to fraction form
139,944.60/193,122.04 = 76,281.02/x - Step 3: Cross multiply
139,944.60x = 193,122.04 × 76,281.02 - Step 4: Simplify right side
139,944.60x = 14,731,546,195.68 - Step 5: Solve for x
x = 14,731,546,195.68/139,944.60 - Step 6: Final answer
x = 105,266.99
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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.