Finding the Fourth Proportional to 185,695.76, 278,498.74 and 85,759.84
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Solution
The fourth proportional to 185,695.76, 278,498.74 and 85,759.84 is: 128,619.02
Step by Step Solution
- Step 1: Write the proportion equation
185,695.76 : 278,498.74 = 85,759.84 : x - Step 2: Convert to fraction form
185,695.76/278,498.74 = 85,759.84/x - Step 3: Cross multiply
185,695.76x = 278,498.74 × 85,759.84 - Step 4: Simplify right side
185,695.76x = 23,884,007,382.60 - Step 5: Solve for x
x = 23,884,007,382.60/185,695.76 - Step 6: Final answer
x = 128,619.02
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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.