Finding the Fourth Proportional to 80,953.70, 121,430.55 and 80,953.70
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Solution
The fourth proportional to 80,953.70, 121,430.55 and 80,953.70 is: 121,430.55
Step by Step Solution
- Step 1: Write the proportion equation
80,953.70 : 121,430.55 = 80,953.70 : x - Step 2: Convert to fraction form
80,953.70/121,430.55 = 80,953.70/x - Step 3: Cross multiply
80,953.70x = 121,430.55 × 80,953.70 - Step 4: Simplify right side
80,953.70x = 9,830,252,315.54 - Step 5: Solve for x
x = 9,830,252,315.54/80,953.70 - Step 6: Final answer
x = 121,430.55
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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.