Finding the Fourth Proportional to 121,284.70, 170,148.50 and 121,284.70
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Solution
The fourth proportional to 121,284.70, 170,148.50 and 121,284.70 is: 170,148.50
Step by Step Solution
- Step 1: Write the proportion equation
121,284.70 : 170,148.50 = 121,284.70 : x - Step 2: Convert to fraction form
121,284.70/170,148.50 = 121,284.70/x - Step 3: Cross multiply
121,284.70x = 170,148.50 × 121,284.70 - Step 4: Simplify right side
121,284.70x = 20,636,409,777.95 - Step 5: Solve for x
x = 20,636,409,777.95/121,284.70 - Step 6: Final answer
x = 170,148.50
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.