Finding the Fourth Proportional to 107,022.96, 147,690.18 and 61,701.02
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Solution
The fourth proportional to 107,022.96, 147,690.18 and 61,701.02 is: 85,146.54
Step by Step Solution
- Step 1: Write the proportion equation
107,022.96 : 147,690.18 = 61,701.02 : x - Step 2: Convert to fraction form
107,022.96/147,690.18 = 61,701.02/x - Step 3: Cross multiply
107,022.96x = 147,690.18 × 61,701.02 - Step 4: Simplify right side
107,022.96x = 9,112,634,749.98 - Step 5: Solve for x
x = 9,112,634,749.98/107,022.96 - Step 6: Final answer
x = 85,146.54
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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.