Finding the Fourth Proportional to 121,497.30, 182,245.95 and 118,905.30
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Solution
The fourth proportional to 121,497.30, 182,245.95 and 118,905.30 is: 178,357.95
Step by Step Solution
- Step 1: Write the proportion equation
121,497.30 : 182,245.95 = 118,905.30 : x - Step 2: Convert to fraction form
121,497.30/182,245.95 = 118,905.30/x - Step 3: Cross multiply
121,497.30x = 182,245.95 × 118,905.30 - Step 4: Simplify right side
121,497.30x = 21,670,009,358.54 - Step 5: Solve for x
x = 21,670,009,358.54/121,497.30 - Step 6: Final answer
x = 178,357.95
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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.