Finding the Fourth Proportional to 135,785.77, 187,385.60 and 82,106.66
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Solution
The fourth proportional to 135,785.77, 187,385.60 and 82,106.66 is: 113,307.95
Step by Step Solution
- Step 1: Write the proportion equation
135,785.77 : 187,385.60 = 82,106.66 : x - Step 2: Convert to fraction form
135,785.77/187,385.60 = 82,106.66/x - Step 3: Cross multiply
135,785.77x = 187,385.60 × 82,106.66 - Step 4: Simplify right side
135,785.77x = 15,385,606,421.83 - Step 5: Solve for x
x = 15,385,606,421.83/135,785.77 - Step 6: Final answer
x = 113,307.95
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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.