Finding the Fourth Proportional to 129,065.00, 178,103.48 and 71,707.95
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Solution
The fourth proportional to 129,065.00, 178,103.48 and 71,707.95 is: 98,953.52
Step by Step Solution
- Step 1: Write the proportion equation
129,065.00 : 178,103.48 = 71,707.95 : x - Step 2: Convert to fraction form
129,065.00/178,103.48 = 71,707.95/x - Step 3: Cross multiply
129,065.00x = 178,103.48 × 71,707.95 - Step 4: Simplify right side
129,065.00x = 12,771,435,080.13 - Step 5: Solve for x
x = 12,771,435,080.13/129,065.00 - Step 6: Final answer
x = 98,953.52
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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.