Finding the Fourth Proportional to 166,804.84, 250,125.18 and 78,011.56
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Solution
The fourth proportional to 166,804.84, 250,125.18 and 78,011.56 is: 116,978.95
Step by Step Solution
- Step 1: Write the proportion equation
166,804.84 : 250,125.18 = 78,011.56 : x - Step 2: Convert to fraction form
166,804.84/250,125.18 = 78,011.56/x - Step 3: Cross multiply
166,804.84x = 250,125.18 × 78,011.56 - Step 4: Simplify right side
166,804.84x = 19,512,655,487.08 - Step 5: Solve for x
x = 19,512,655,487.08/166,804.84 - Step 6: Final answer
x = 116,978.95
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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.