Finding the Fourth Proportional to 121,806.14, 182,746.06 and 86,336.02
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Solution
The fourth proportional to 121,806.14, 182,746.06 and 86,336.02 is: 129,530.15
Step by Step Solution
- Step 1: Write the proportion equation
121,806.14 : 182,746.06 = 86,336.02 : x - Step 2: Convert to fraction form
121,806.14/182,746.06 = 86,336.02/x - Step 3: Cross multiply
121,806.14x = 182,746.06 × 86,336.02 - Step 4: Simplify right side
121,806.14x = 15,777,567,491.08 - Step 5: Solve for x
x = 15,777,567,491.08/121,806.14 - Step 6: Final answer
x = 129,530.15
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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.