Finding the Fourth Proportional to 147,785.06, 203,943.62 and 84,122.87
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Solution
The fourth proportional to 147,785.06, 203,943.62 and 84,122.87 is: 116,089.69
Step by Step Solution
- Step 1: Write the proportion equation
147,785.06 : 203,943.62 = 84,122.87 : x - Step 2: Convert to fraction form
147,785.06/203,943.62 = 84,122.87/x - Step 3: Cross multiply
147,785.06x = 203,943.62 × 84,122.87 - Step 4: Simplify right side
147,785.06x = 17,156,321,823.18 - Step 5: Solve for x
x = 17,156,321,823.18/147,785.06 - Step 6: Final answer
x = 116,089.69
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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.